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Help requested. I found the image File:Nebivolol_synthesis.svg (as seen at left) on the nebivolol page. The N atoms in structures 4 and 5 appear to me to be hanging in space way away from the rest of the structure. The uploader has been banned for violating rules on multiple accounts. Would someone please correct the images / upload new ones? Thanks. EdChem ( talk) 08:43, 28 December 2015 (UTC)
Ok, according to this patent, the alkene functionality should not have returned, consistent with the final structure. The trimethylsulfonium's counter-ion is iodide. Also, the F on the benzene ring should be para to the ether linkage... EdChem ( talk) 06:35, 31 December 2015 (UTC)
Shouldn't this article have a chembox or at least a maintenance category concerning this failure? -- Leyo 01:36, 30 December 2015 (UTC)
Structure diagram looks incorrect (per talkpage)...extra carbon in the linkage from the central carbon to one of the butylesters. Probably some other chembox data also would need to be updated to match that change. DMacks ( talk) 06:42, 31 December 2015 (UTC)
Many articles of alpha-amino acids have very generic introductions. I've checked history and it looks like students in UCLA course were supposed to change them (see instructor's page with the template text). Changes removed useful information, internal links, references etc. and introduced generic text. (Text also contains improperly written formulae, for example "-+NH3".)
Some change diffs: alanine, methionine, tryptophan ( all changes related to this course).
Should these changes be reverted? -- Domen ( talk) 23:08, 7 January 2016 (UTC)
The motivation behind the changes was to standardize the amino acid intros so that all the same important information was there. While the type of information is the same it is specific to the amino acid in question. In terms of informing new readers about amino acids we thought that would be a useful way to introduce the amino acids. I did post on the Wikiprojects chemistry talk page about the intended changes, I didn’t realize there was a separate one for chemicals. We didn’t intend for internal links and references to be removed. I will attempt to put those back as soon as I have a chance.
What additional information does anyone think should be included in the introduction?
The incorrect formula is my fault and I will correct those as well.
I would hope that you would not revert the intros as we found that some of them were confusing and had unnecessary information in them. Rather if you can improve on the changes we made we would greatly appreciate it. Htienson ( talk) 00:29, 8 January 2016 (UTC)
I might be wrong, but to me the images in Aspartame are not identical (+ checking JMol 3D). The ball-and-stick seems to have the N-atoms (blue) different and incorrect. Shows an NH3. - DePiep ( talk) 21:35, 20 January 2016 (UTC)
Dear Wikipedian colleagues, I've been around for some time, but I am still quite new to creating new pages. Now I have some free time and a copy of the Merck Index and CRC Handbook at hands. I propose myself to create new Wiki pages for less common inorganic compounds listed on those references. I ask you opinion if that is welcome and, if so, if you have any suggestions or recommendations for me at this time. Thanks! JEFCG ( talk) 08:08, 28 January 2016 (UTC)
Category:Chemical pages without CAS Registry Number has been deleted under the criteria of WP:G8. I occasionally used this cat as a to-do-list of pages to improve and I would like it back (providing that its not a problem). I can't undo page deletions so can someone resort it for me?.. Also, can I suggest the use of the {{G8-exempt}} tag? -- Project Osprey ( talk) 10:00, 3 February 2016 (UTC)
Does anyone know the structure of “extra-chlorine DDT or Cl-DDT” (see e.g. cornell.edu)? -- Leyo 23:44, 12 February 2016 (UTC)
and a substance called extra-chlorine DDT or Cl-DDT
from
Dicofol#Impurities, then? --
Leyo
01:21, 14 February 2016 (UTC)Hello. At
Category:Pages where template include size is exceeded we are trying to empty the place, and it happens that this 13 pages
Wikipedia:WikiProject Chemicals/Log/2010-11-04
Wikipedia:WikiProject Chemicals/Log/2010-11-06
Wikipedia:WikiProject Chemicals/Log/2010-11-12
Wikipedia:WikiProject Chemicals/Log/2010-11-28
Wikipedia:WikiProject Chemicals/Log/2010-11-30
Wikipedia:WikiProject Chemicals/Log/2010-12-01
Wikipedia:WikiProject Chemicals/Log/2010-12-02
Wikipedia:WikiProject Chemicals/Log/2010-12-03
Wikipedia:WikiProject Chemicals/Log/2010-12-06
Wikipedia:WikiProject Chemicals/Log/2010-12-07
Wikipedia:WikiProject Chemicals/Log/2010-12-11
Wikipedia:WikiProject Chemicals/Log/2010-12-12
Wikipedia:WikiProject Chemicals/Log/2010-12-16
Wikipedia:WikiProject Chemicals/Log/2011-08-06
Wikipedia:WikiProject Chemicals/Log/2011-08-09
Wikipedia:WikiProject Chemicals/Log/2011-08-10
all created by CheMoBot, are on overflow. Perhaps, you could split each of them in 2 pages ?
Pldx1 (
talk)
22:33, 20 February 2016 (UTC)
Wikipedia:WikiProject Pharmacology/Log/2010-12-03
Wikipedia:WikiProject Pharmacology/Log/2011-06-30
Wikipedia:WikiProject Pharmacology/Log/2011-07-01
Wikipedia:WikiProject Pharmacology/Log/2011-08-10
Wikipedia:WikiProject Pharmacology/Log/2011-09-03
There is a discussion here if that topic is of interest. It has been going on since Feb 26, but just wanted to make sure folks here are aware of it. Jytdog ( talk) 18:04, 4 March 2016 (UTC)
Something seems to be wrong with the Jmol interactive 3D structure of rhodizonic acid. -- Leyo 21:17, 18 March 2016 (UTC)
According to ChemIDplus, CAS number 152923-56-3 corresponds to Daclizumab (see here). But this CAS number is validated in the chembox of Basiliximab. Please contact the responsible of the validation bot to see if there is a modification to do in its reference list. Thank you Snipre ( talk) 15:45, 19 March 2016 (UTC)
I've proposed to add chlorofluorocarbon and Magnesium chloride to WP:VA/E, but they have been having no votes for at least 7 days. Hope that you can participate in the voting of these proposals. Thanks!-- RekishiEJ ( talk) 06:54, 20 March 2016 (UTC)
Both articles have the same CAS number but according to ChemIDplus they have a different one:
Can someone provide another source for both compounds in order to validate these numbers ? Thank you Snipre ( talk) 12:35, 22 March 2016 (UTC)
From my understanding, Monoiodotyrosine is about one stereoisomer and 3-Iodotyrosine about the mixture of stereoiomers. Can someone check if this is true and change the appropriate picture ? Thank you. Snipre ( talk) 14:42, 25 March 2016 (UTC)
@ Anypodetos: From my understanding, these articles are about the same molecule. Can someone check if this is true and merge both articles ? Thank you. Snipre ( talk) 12:23, 22 March 2016 (UTC)
From my understanding, these articles are about the same molecule. Can someone check if this is true and merge both articles ? Thank you. Snipre ( talk) 15:38, 19 March 2016 (UTC)
I have checked both articles and it is clear that they should be merged. It is indeed the same substance. I have never done any merging operations. So either you could merge the articles or point me to the instructions how to do it. Jurajlip 17:45, 23 March 2016 (UTC) — Preceding unsigned comment added by Jurajlip ( talk • contribs)
In the article, it says “Zineb and is a polymeric complex of zinc …”. The structure shown, however, is a salt. Is there a better representation of the structure? -- Leyo 20:17, 4 April 2016 (UTC)
Re the new image, I know that the carbon-sulfur bonds are identical and neither single nor double but I wonder if the appearance of apparently trivalent carbons in the dithiocarbamate groups will be confusing? EdChem ( talk) 13:10, 15 April 2016 (UTC)
There's nothing in the CSD. Just the sodium salt of the ligand and a cyclic tin complex. -- Ben ( talk) 09:10, 19 April 2016 (UTC)
Nothing for propineb either, nor any zinc compounds with similar ligands (with an ethylene backbone linking two dithiocarbamate groups). There are about 250 structures containing some kind of dithiocarbamate and zinc. Many of them have zinc coordinated to four sulfurs and one nitrogen-donor ligand such as pyridine. There are also dimers and six-coordinate Zn, as well as a few of the tetrahedral (R2NCS2)2Zn species I expected to see. Perhaps polymers like zineb and propineb are too insoluble to crystallize. -- Ben ( talk) 16:32, 19 April 2016 (UTC)
In general, if a compound is chiral, is its chirality a "noteworthy feature" (as described in MOS:CHEM/Chemicals#Introductory paragraph) that should be mentioned in the lead of an article on that compound? If it's not, it would help to get some input at Talk:MDMA/Archive 6#Chirality and drug classes about what chemistry-related content should be mentioned in that particular article, since there's currently no coverage of any of that drug's chemical properties in the lead. Seppi333 ( Insert 2¢) 21:06, 26 April 2016 (UTC)
Rivanicline is defined as (E)-metanicotine with CAS number 15585-43-0 on ChemIDplus and metanicotine is defined with CAS number 538-79-4 on ChemIDplus. But both ChemIDplus pages have the same sturcture (and same InChIKey).
Are both CAS numbers representing the same compound or CAS number 15585-43-0 represents the (E)-metanicotine and CAS number 538-79-4 the mixture of (E)-metanicotine and (Z)-metanicotine. Thank you in advance for your help. Snipre ( talk) 21:24, 13 April 2016 (UTC)
Can someone checks if the compounds defined by 252260-02-9 and 252260-06-3 are the same or if there is a difference ? Thanks. Snipre ( talk) 22:41, 13 April 2016 (UTC)
Can someone checks if the compounds defined by 102-61-4 and 22139-77-1 are the same or if there is a difference ? Thanks. Snipre ( talk) 22:54, 13 April 2016 (UTC)
Two questions. - DePiep ( talk) 11:30, 21 April 2016 (UTC)
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3D model (
JSmol)
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By default, {{Chembox}} uses the |SMILES=
input to create a link to the external Jmol interactive image. That is: Jmol uses the SMILES linear definition. All fine, most of the time.
Some months ago I read in a talkpage that there are situations where Jmol should be build from a different SMILES string. I can't find that any more, so my question is: does anyone have an example for this situation?
I plan to build the option into {{Chembox}} to overwrite |SMILES=
with new parameter |Jmol=
to cover this situation. Note: also, entering |Jmol=none
will suppress any Jmol data showing up. -
DePiep (
talk)
11:30, 21 April 2016 (UTC)
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3D model (
JSmol)
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Q2, possibly related: sometimes I see two SMILES for one substance, one having uppercases the other one having lowercases. Is this relevant for the Jmol image? IOW, do they both result in a correct Jmol image? (example needed added) -
DePiep (
talk)
11:12, 21 April 2016 (UTC)
Upper and lower case 'c' code for normal and aromatic carbons respectively (see below). In drugbox you mostly see SMILES for aromatic compounds written with 'c' - but in chembox most use 'C'. It's possible to have a long debate about which representation we should be showing. Personally, I've noticed that many computer interfaces don't understand SMILES containing 'c' (Scifinder for example) and as SMILES is supposed to be machine readable I think that's a big problem. It's possible that this relates to the Jmol issue (why else would you need a second SMILES unless the first one doesn't work?) but I can't say so for certain. -- Project Osprey ( talk) 12:45, 21 April 2016 (UTC)
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3D model (
JSmol)
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|Jmol1=none
to suppress (hide) that faulty Jmol link. Will do. -
DePiep (
talk)
21:34, 21 April 2016 (UTC)
There is a list of all Chemboxes with SMILES errors here (chose the 'Browse errors' option at the top). -- Project Osprey ( talk) 20:58, 28 April 2016 (UTC)
Hi, I still have some problems to identify the correct structure from a CAS number:
Thank you for your help. Snipre ( talk) 14:44, 29 April 2016 (UTC)
Please contribute to the RFC on the MDMA talk page. Part of it concerns the application of the chemicals MOS to drug articles. Talk:MDMA#Chirality and drug class in lead Sizeofint ( talk) 23:07, 29 April 2016 (UTC)
Substub since 2007. Xx236 ( talk) 10:10, 30 May 2016 (UTC)
Following a recent discussion at WP:VPR, there is consensus for an opt-in bot task that automatically assesses the class of articles based on classes listed for other project templates on the same page. In other words, if WikiProject A has evaluated an article to be C-class and WikiProject B hasn't evaluated the article at all, such a bot task would automatically evaluate the article as C-class for WikiProject B.
If you think auto-assessment might benefit this project, consider discussing it with other members here. For more information or to request an auto-assessment run, please visit User:BU RoBOT/autoassess. This is a one-time message to alert projects with over 1,000 unassessed articles to this possibility. ~ Rob Talk 22:22, 3 June 2016 (UTC)
Can someone from the project rescue the one-line stub Terbium difluoride? The editor specifically claims his incompetence on the topic and claims that the compound is "hypothetical" and "might exist" (see the initial stub he wrote). I placed a PROD tag but changed my mind after seeing that a few webpages at least seem to confirm the existence of the molecule. Help would be appreciated so thanks in advance! Pichpich ( talk) 22:26, 11 June 2016 (UTC)
I guess that there are more of this nearly-hypothetical compounds throughout the periodic table - where most do not warrant any article by themselves (as would be my judgement for this one). Making a rough split, 'binary halides of transition metals' and 'binary halides of lanthanides and actinides' might make two articles, where most of those could be listed (similarly one could consider for oxides/sulfides, and possibly carbides or nitrides), and incorporate (and redirect) all of these there. One could also park there the ones which are a bit more real, but not particularly notable (lower notability threshold: at least have references describing (computational) properties; higher notability threshold "real life 'use' (if only to chemists)"). -- Dirk Beetstra T C 12:05, 14 June 2016 (UTC)
Comments at Talk:Polyethylene glycol#Merge Macrogol? would be welcome. -- ἀνυπόδητος ( talk) 12:48, 22 June 2016 (UTC)
I was looking at the double bond article and noticed a table with links for O=O and S=S. Since both are diradical ground states, I was wondering about this being misleading then went to the disulfur article and found the image at right in the infobox. Can anyone provide something more suitable and chemically accurate? Perhaps a space filling model, or something akin to the approach taken at oxygen where spectral lines and a discharge tube are shown? Thanks, EdChem ( talk) 09:51, 9 July 2016 (UTC)
File:5F-AMB structure.png is used to illustrate the structure of this compound but has an (S) included indicating stereochemistry, but appearing like a sulfur atom. Would someone be willing to upload a new image (SVG, perhaps?) either without the (S) or with it not over the structure? Thanks, EdChem ( talk) 14:26, 1 August 2016 (UTC)
Calcium chloride, an article that you or your project may be interested in, has been nominated for an individual good article reassessment. If you are interested in the discussion, please participate by adding your comments to the reassessment page. If concerns are not addressed during the review period, the good article status may be removed from the article. BlueMoonset ( talk) 04:42, 19 August 2016 (UTC)
Template:Piperazines has been nominated for deletion. WikiProject Chemicals participants may be interested in contributing to the discussion at Wikipedia:Templates_for_discussion/Log/2016_August_29#Template:Piperazines. -- Ed ( Edgar181) 19:01, 30 August 2016 (UTC)
Many participants here create a lot of content, have to evaluate whether or not a subject is notable, decide if content complies with BLP policy, and much more. Well, these are just some of the skills considered at Wikipedia:Requests for adminship.
So, please consider taking a look at and watchlisting this page:
You could be very helpful in evaluating potential candidates, and even finding out if you would be a suitable RfA candidate.
Many thanks and best wishes,
Anna Frodesiak ( talk) 03:43, 1 September 2016 (UTC)
Would anyone here be willing to do a review of the "Chemistry" section of β-hydroxy β-methylbutyric acid at its FAC nomination? One reviewer there ( Nergaal) suggested that a chemist or someone with a strong chemistry background needs to look at and review that section. I'd really appreciate it if one of you takes on a review at the FAC nomination or even just offers some constructive, actionable feedback of the article's chemistry section. Seppi333 ( Insert 2¢) 22:07, 9 September 2016 (UTC)
I've got a quick question about the melting point of β-Hydroxy β-methylbutyric acid (aka 3-Hydroxyisovaleric acid / β-Hydroxyisovaleric acid). I've found 3 sources† that list different MPs and BPs for the compound:
Of these sources, only chemspider cites another source; hence, I assume the BP of 302.808 °C @ 760 mmHg is correct, but I'm still not really sure which MP to use. I was wondering if any of you knew of any database sources that corroborate the MP values (the only databases that I've checked are the ones currently listed in the article's drugbox); if not, should I just forego adding a MP to the drugbox?
Seppi333 ( Insert 2¢) 19:11, 10 August 2016 (UTC)
Addressed issue with images
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Would anyone be willing to redraw File:Calcium hydroxymethylbutyrate skeletal.svg and File:Hydroxymethylbutyric acid.png in svg so that the lines in these diagrams and the placement of the hydroxy group are consistent with how it's drawn in File:HMB synthesis.svg? I nominated this article at FAC so I figured it'd be best if the structure diagrams for HMB were uniform throughout the article. Seppi333 ( Insert 2¢) 00:23, 20 August 2016 (UTC)
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There are two areas were we could use help for Cocamidopropyl betaine, having to due with how we discuss and label it's production. First, the straightforward need to properly source and present how it is produced. We're currently linking to Organic synthesis, which appears to need large amounts of work itself. I'm wondering it might be better not to link to Organic synthesis, but a better quality article on the same topic, as Organic synthesis appears to be more than a bit of a POVFork. I assume there are standard, reliable sources available for how it is produced that editors that frequent this talk page would know.
Second, this chemical is apparently identified as an acceptable ingredient for "natural" products, and there is some dispute over whether or not it should be. This dispute may be nothing more than opposing marketing strategies. No sources have been offered to verify any of this, and the ip that repeatedly brought it up is now focusing on the production aspect instead.
So, we could use help with using proper terminology in the article, linking to proper related articles, and finding sources, especially for how cocamidopropyl betaine is produced. -- Ronz ( talk) 17:52, 9 September 2016 (UTC)
For whatever reasons, an editor has started adding the template {{Hydrides by group}} to all hydrocarbons. That would be a lot of articles. Is this template helpful for readers? My recommendation is that articles be kept austere of tangential information for these reasons: 1) Readers seeking info about 1-octene is extremely unlikely to want to see the periodic table of hydride chemistry (CuH, TiHx etc). 2) Wikipedia is not a textbook. 3) What next? A template for carbon compounds? A separate template for alkenes? One for amines. So for an organometallic cmpd or normally complex natural product, the bottom of the article would have say 10 templates? So the community might think this through. -- Smokefoot ( talk) 13:13, 22 September 2016 (UTC)
I've added labels to the images at Template:Hydrides by group. Currently H2 and HD are listed as hydrogen halides, which they aren't. Should either of these be included at all, given binary hydrides implies hydrogen with some other element? Also, any reason for separating borane and diborane under "boranes" but away from all the other boranes? Thoughts? EdChem ( talk) 06:10, 23 September 2016 (UTC)
It's worth noting that hydrocarbons are unlike any other hydrides on this list, in that Carbon is more electronegative than Hydrogen. As such you basically never see hydride abstraction, but you do get addition or substitution reactions instead. Take the simple reaction of a hydride with an acid: methane will react with superacids to give Methanium, which is essentially stable (under the extreme condition at which it is formed). You don't see the abstraction reaction:
CH4 + H+ → CH3+ + H2
As such I don't think they belong on this list, as they don't display hydride chemistry. I understand why they were added, it fills in a black area of a table, which is something that all scientists find very appealing. Unfortunately nature doesn't always conform to well ordered lists and these materials do not belong - or if we are going to include them we should probably explain ourselves somewhere. -- Project Osprey ( talk) 09:40, 23 September 2016 (UTC)
This article is nominated for deletion at Wikipedia:Articles for deletion/3-Methylcyclopropene. Contribution from participants of this WikiProject would be helpful. ChemNerd ( talk) 14:39, 23 September 2016 (UTC)
I'm not sure if this should have been posted some place on Wikimedia Commons, but I don't think there's a place to request files of models of molecules, so I'll out this here instead.
Reviving an archived discussion: the file for disulfur is horribly inconsistent with all the other homonuclear diatomic molecules, which have space-filling models compared to this weird ball-and-stick thing.
On a similar note, no 3D model seems to exist for diatomic carbon. Could one be made? I don't have the neccesary programs.
- AwesoMan3000 ( talk) 17:16, 21 September 2016 (UTC)
Do we really want to have such articles with three chemboxes of different isomers? -- Leyo 08:45, 4 October 2016 (UTC)
Just to announce you than thanks to the work of @ Sebotic:, Wikidata increases its coverage of chemicals with a total of ~98'000 chemicals having an item. All data were imported from PubChem and ChEBI and respect the rules about sources leading to a high improvement of the data quality. Right now an important step has to start to curate the data especially to merge duplicated items. You are welcome to take part to this action and you can get in touch with the Chemistry project in WD for details.
From that work additional importations can start in order to add more identifiers but please announce your intention of data import before any huge importation in order to coordinate the work of bots and of contributors curating the conflicts. Snipre ( talk) 10:09, 12 October 2016 (UTC)
See Special:Contributions/Raffinate2 -bunch of recent edits like this. Pinging User:Raffinate2 and asking folks here what they think. Jytdog ( talk) 08:48, 8 October 2016 (UTC)
Something seems to be wrong since the infobox of both compounds contains the CAS RN 91449-79-5. If a correction is made, it needs to be done in the corresponding Wikidata item, too. -- Leyo 12:07, 1 October 2016 (UTC)
I was unable to find the CAS numbers for the following compounds:
Does anyone have access to SciFinder? -- Leyo 08:39, 2 November 2016 (UTC)
Does polybutyrate have a CAS RN at all? -- Leyo 15:36, 3 November 2016 (UTC)
Hi, I am having a problem with this image and the images I made that were based on it. I am not sure if it is accurate, but I am equally unsure of the correct names for these stereoisomers.
See the relevant talk page for more details.
- Jynto ( talk) 16:34, 3 November 2016 (UTC)
As part of expanding the recent aluminium triacetate article, I have uploaded File:CaAl(OH)(H2O)Az2 dihydrate.png as an image of one hypothesised structure formed when aluminium triacetate acts as a mordant with alizarin. The image looks poor, so if someone would re-draw it as an .SVG file, that would be excellent. Also, I have found that I could not tag it with the usual PD-chem template as it has been deleted. I have requested it be restored at Wikipedia:Requests_for_undeletion#Template:PD-chem and invite comment from anyone with a view on it being restored or remaining deleted. I have also posted to WT:CHEMISTRY. EdChem ( talk) 01:43, 23 November 2016 (UTC)
A request for comment has been made at the above link. Your input is welcome. Boghog ( talk) 16:46, 27 November 2016 (UTC)
A request for comment has been made at the above link. Your input is welcome. Boghog ( talk) 11:51, 30 October 2016 (UTC)
c1c/c/2c\3/c(c3)c4/c(c/5\c(c2c1)c5)/ccc4 is a SMILES of trans-Bicalicene. But, Jmol can't recognize c1c/c/2c\3/c(c3)c4/c(c/5\c(c2c1)c5)/ccc4 as an aromatic molecule. [1] -- Abelium ( talk) 16:01, 6 December 2016 (UTC)
Greetings WikiProject Chemicals/Archive 2016 Members!
This is a one-time-only message to inform you about a technical proposal to revive your Popular Pages list in the 2016 Community Wishlist Survey that I think you may be interested in reviewing and perhaps even voting for:
If the above proposal gets in the Top 10 based on the votes, there is a high likelihood of this bot being restored so your project will again see monthly updates of popular pages.
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Hi, can someone give me some explanation about the differences between these two compounds: (Cyano-κC)potassium and [http://www.chemspider.com/Chemical-Structure.8681.html POTASSIUM CYANIDE ? Is it just a problem of structure drawing or the first compound is a real and stable compound ? Thanks Snipre ( talk) 17:47, 6 December 2016 (UTC)
Hello again WP Chemicals members! I also noticed that you make extensive use of RecentChangesLinked to produce change patrols in a "Recent changes" template. Here's a couple Wishlist Survey proposals related to making these patrols more productive:
Please consider and vote on these by December 12. Thank you again for your time! Stevie is the man! Talk • Work 16:00, 8 December 2016 (UTC)
Which is the most correct structure for SeSn ? A covalent bond or a ionic bond ? See the table
Database | Covalent | Ionic |
---|---|---|
Wikidata | Q6589976 | Q27283356 |
PubChem | 6432049 | 9877645 |
ChemSpider | [www.chemspider.com/Chemical-Structure.4937309.html 4937309] | [www.chemspider.com/Chemical-Structure.8053322.html 8053322] |
InChI | 1S/Se.Sn | 1S/Se.Sn/q-2;+2 |
InChIKey | MFIWAIVSOUGHLI-UHFFFAOYSA-N | LYZMBUYUNBCSMW-UHFFFAOYSA-N |
Snipre ( talk) 15:45, 8 December 2016 (UTC)
![]() | This is an archive of past discussions. Do not edit the contents of this page. If you wish to start a new discussion or revive an old one, please do so on the current talk page. |
Archive 2010 | ← | Archive 2014 | Archive 2015 | Archive 2016 |
Help requested. I found the image File:Nebivolol_synthesis.svg (as seen at left) on the nebivolol page. The N atoms in structures 4 and 5 appear to me to be hanging in space way away from the rest of the structure. The uploader has been banned for violating rules on multiple accounts. Would someone please correct the images / upload new ones? Thanks. EdChem ( talk) 08:43, 28 December 2015 (UTC)
Ok, according to this patent, the alkene functionality should not have returned, consistent with the final structure. The trimethylsulfonium's counter-ion is iodide. Also, the F on the benzene ring should be para to the ether linkage... EdChem ( talk) 06:35, 31 December 2015 (UTC)
Shouldn't this article have a chembox or at least a maintenance category concerning this failure? -- Leyo 01:36, 30 December 2015 (UTC)
Structure diagram looks incorrect (per talkpage)...extra carbon in the linkage from the central carbon to one of the butylesters. Probably some other chembox data also would need to be updated to match that change. DMacks ( talk) 06:42, 31 December 2015 (UTC)
Many articles of alpha-amino acids have very generic introductions. I've checked history and it looks like students in UCLA course were supposed to change them (see instructor's page with the template text). Changes removed useful information, internal links, references etc. and introduced generic text. (Text also contains improperly written formulae, for example "-+NH3".)
Some change diffs: alanine, methionine, tryptophan ( all changes related to this course).
Should these changes be reverted? -- Domen ( talk) 23:08, 7 January 2016 (UTC)
The motivation behind the changes was to standardize the amino acid intros so that all the same important information was there. While the type of information is the same it is specific to the amino acid in question. In terms of informing new readers about amino acids we thought that would be a useful way to introduce the amino acids. I did post on the Wikiprojects chemistry talk page about the intended changes, I didn’t realize there was a separate one for chemicals. We didn’t intend for internal links and references to be removed. I will attempt to put those back as soon as I have a chance.
What additional information does anyone think should be included in the introduction?
The incorrect formula is my fault and I will correct those as well.
I would hope that you would not revert the intros as we found that some of them were confusing and had unnecessary information in them. Rather if you can improve on the changes we made we would greatly appreciate it. Htienson ( talk) 00:29, 8 January 2016 (UTC)
I might be wrong, but to me the images in Aspartame are not identical (+ checking JMol 3D). The ball-and-stick seems to have the N-atoms (blue) different and incorrect. Shows an NH3. - DePiep ( talk) 21:35, 20 January 2016 (UTC)
Dear Wikipedian colleagues, I've been around for some time, but I am still quite new to creating new pages. Now I have some free time and a copy of the Merck Index and CRC Handbook at hands. I propose myself to create new Wiki pages for less common inorganic compounds listed on those references. I ask you opinion if that is welcome and, if so, if you have any suggestions or recommendations for me at this time. Thanks! JEFCG ( talk) 08:08, 28 January 2016 (UTC)
Category:Chemical pages without CAS Registry Number has been deleted under the criteria of WP:G8. I occasionally used this cat as a to-do-list of pages to improve and I would like it back (providing that its not a problem). I can't undo page deletions so can someone resort it for me?.. Also, can I suggest the use of the {{G8-exempt}} tag? -- Project Osprey ( talk) 10:00, 3 February 2016 (UTC)
Does anyone know the structure of “extra-chlorine DDT or Cl-DDT” (see e.g. cornell.edu)? -- Leyo 23:44, 12 February 2016 (UTC)
and a substance called extra-chlorine DDT or Cl-DDT
from
Dicofol#Impurities, then? --
Leyo
01:21, 14 February 2016 (UTC)Hello. At
Category:Pages where template include size is exceeded we are trying to empty the place, and it happens that this 13 pages
Wikipedia:WikiProject Chemicals/Log/2010-11-04
Wikipedia:WikiProject Chemicals/Log/2010-11-06
Wikipedia:WikiProject Chemicals/Log/2010-11-12
Wikipedia:WikiProject Chemicals/Log/2010-11-28
Wikipedia:WikiProject Chemicals/Log/2010-11-30
Wikipedia:WikiProject Chemicals/Log/2010-12-01
Wikipedia:WikiProject Chemicals/Log/2010-12-02
Wikipedia:WikiProject Chemicals/Log/2010-12-03
Wikipedia:WikiProject Chemicals/Log/2010-12-06
Wikipedia:WikiProject Chemicals/Log/2010-12-07
Wikipedia:WikiProject Chemicals/Log/2010-12-11
Wikipedia:WikiProject Chemicals/Log/2010-12-12
Wikipedia:WikiProject Chemicals/Log/2010-12-16
Wikipedia:WikiProject Chemicals/Log/2011-08-06
Wikipedia:WikiProject Chemicals/Log/2011-08-09
Wikipedia:WikiProject Chemicals/Log/2011-08-10
all created by CheMoBot, are on overflow. Perhaps, you could split each of them in 2 pages ?
Pldx1 (
talk)
22:33, 20 February 2016 (UTC)
Wikipedia:WikiProject Pharmacology/Log/2010-12-03
Wikipedia:WikiProject Pharmacology/Log/2011-06-30
Wikipedia:WikiProject Pharmacology/Log/2011-07-01
Wikipedia:WikiProject Pharmacology/Log/2011-08-10
Wikipedia:WikiProject Pharmacology/Log/2011-09-03
There is a discussion here if that topic is of interest. It has been going on since Feb 26, but just wanted to make sure folks here are aware of it. Jytdog ( talk) 18:04, 4 March 2016 (UTC)
Something seems to be wrong with the Jmol interactive 3D structure of rhodizonic acid. -- Leyo 21:17, 18 March 2016 (UTC)
According to ChemIDplus, CAS number 152923-56-3 corresponds to Daclizumab (see here). But this CAS number is validated in the chembox of Basiliximab. Please contact the responsible of the validation bot to see if there is a modification to do in its reference list. Thank you Snipre ( talk) 15:45, 19 March 2016 (UTC)
I've proposed to add chlorofluorocarbon and Magnesium chloride to WP:VA/E, but they have been having no votes for at least 7 days. Hope that you can participate in the voting of these proposals. Thanks!-- RekishiEJ ( talk) 06:54, 20 March 2016 (UTC)
Both articles have the same CAS number but according to ChemIDplus they have a different one:
Can someone provide another source for both compounds in order to validate these numbers ? Thank you Snipre ( talk) 12:35, 22 March 2016 (UTC)
From my understanding, Monoiodotyrosine is about one stereoisomer and 3-Iodotyrosine about the mixture of stereoiomers. Can someone check if this is true and change the appropriate picture ? Thank you. Snipre ( talk) 14:42, 25 March 2016 (UTC)
@ Anypodetos: From my understanding, these articles are about the same molecule. Can someone check if this is true and merge both articles ? Thank you. Snipre ( talk) 12:23, 22 March 2016 (UTC)
From my understanding, these articles are about the same molecule. Can someone check if this is true and merge both articles ? Thank you. Snipre ( talk) 15:38, 19 March 2016 (UTC)
I have checked both articles and it is clear that they should be merged. It is indeed the same substance. I have never done any merging operations. So either you could merge the articles or point me to the instructions how to do it. Jurajlip 17:45, 23 March 2016 (UTC) — Preceding unsigned comment added by Jurajlip ( talk • contribs)
In the article, it says “Zineb and is a polymeric complex of zinc …”. The structure shown, however, is a salt. Is there a better representation of the structure? -- Leyo 20:17, 4 April 2016 (UTC)
Re the new image, I know that the carbon-sulfur bonds are identical and neither single nor double but I wonder if the appearance of apparently trivalent carbons in the dithiocarbamate groups will be confusing? EdChem ( talk) 13:10, 15 April 2016 (UTC)
There's nothing in the CSD. Just the sodium salt of the ligand and a cyclic tin complex. -- Ben ( talk) 09:10, 19 April 2016 (UTC)
Nothing for propineb either, nor any zinc compounds with similar ligands (with an ethylene backbone linking two dithiocarbamate groups). There are about 250 structures containing some kind of dithiocarbamate and zinc. Many of them have zinc coordinated to four sulfurs and one nitrogen-donor ligand such as pyridine. There are also dimers and six-coordinate Zn, as well as a few of the tetrahedral (R2NCS2)2Zn species I expected to see. Perhaps polymers like zineb and propineb are too insoluble to crystallize. -- Ben ( talk) 16:32, 19 April 2016 (UTC)
In general, if a compound is chiral, is its chirality a "noteworthy feature" (as described in MOS:CHEM/Chemicals#Introductory paragraph) that should be mentioned in the lead of an article on that compound? If it's not, it would help to get some input at Talk:MDMA/Archive 6#Chirality and drug classes about what chemistry-related content should be mentioned in that particular article, since there's currently no coverage of any of that drug's chemical properties in the lead. Seppi333 ( Insert 2¢) 21:06, 26 April 2016 (UTC)
Rivanicline is defined as (E)-metanicotine with CAS number 15585-43-0 on ChemIDplus and metanicotine is defined with CAS number 538-79-4 on ChemIDplus. But both ChemIDplus pages have the same sturcture (and same InChIKey).
Are both CAS numbers representing the same compound or CAS number 15585-43-0 represents the (E)-metanicotine and CAS number 538-79-4 the mixture of (E)-metanicotine and (Z)-metanicotine. Thank you in advance for your help. Snipre ( talk) 21:24, 13 April 2016 (UTC)
Can someone checks if the compounds defined by 252260-02-9 and 252260-06-3 are the same or if there is a difference ? Thanks. Snipre ( talk) 22:41, 13 April 2016 (UTC)
Can someone checks if the compounds defined by 102-61-4 and 22139-77-1 are the same or if there is a difference ? Thanks. Snipre ( talk) 22:54, 13 April 2016 (UTC)
Two questions. - DePiep ( talk) 11:30, 21 April 2016 (UTC)
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3D model (
JSmol)
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By default, {{Chembox}} uses the |SMILES=
input to create a link to the external Jmol interactive image. That is: Jmol uses the SMILES linear definition. All fine, most of the time.
Some months ago I read in a talkpage that there are situations where Jmol should be build from a different SMILES string. I can't find that any more, so my question is: does anyone have an example for this situation?
I plan to build the option into {{Chembox}} to overwrite |SMILES=
with new parameter |Jmol=
to cover this situation. Note: also, entering |Jmol=none
will suppress any Jmol data showing up. -
DePiep (
talk)
11:30, 21 April 2016 (UTC)
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3D model (
JSmol)
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Q2, possibly related: sometimes I see two SMILES for one substance, one having uppercases the other one having lowercases. Is this relevant for the Jmol image? IOW, do they both result in a correct Jmol image? (example needed added) -
DePiep (
talk)
11:12, 21 April 2016 (UTC)
Upper and lower case 'c' code for normal and aromatic carbons respectively (see below). In drugbox you mostly see SMILES for aromatic compounds written with 'c' - but in chembox most use 'C'. It's possible to have a long debate about which representation we should be showing. Personally, I've noticed that many computer interfaces don't understand SMILES containing 'c' (Scifinder for example) and as SMILES is supposed to be machine readable I think that's a big problem. It's possible that this relates to the Jmol issue (why else would you need a second SMILES unless the first one doesn't work?) but I can't say so for certain. -- Project Osprey ( talk) 12:45, 21 April 2016 (UTC)
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3D model (
JSmol)
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|Jmol1=none
to suppress (hide) that faulty Jmol link. Will do. -
DePiep (
talk)
21:34, 21 April 2016 (UTC)
There is a list of all Chemboxes with SMILES errors here (chose the 'Browse errors' option at the top). -- Project Osprey ( talk) 20:58, 28 April 2016 (UTC)
Hi, I still have some problems to identify the correct structure from a CAS number:
Thank you for your help. Snipre ( talk) 14:44, 29 April 2016 (UTC)
Please contribute to the RFC on the MDMA talk page. Part of it concerns the application of the chemicals MOS to drug articles. Talk:MDMA#Chirality and drug class in lead Sizeofint ( talk) 23:07, 29 April 2016 (UTC)
Substub since 2007. Xx236 ( talk) 10:10, 30 May 2016 (UTC)
Following a recent discussion at WP:VPR, there is consensus for an opt-in bot task that automatically assesses the class of articles based on classes listed for other project templates on the same page. In other words, if WikiProject A has evaluated an article to be C-class and WikiProject B hasn't evaluated the article at all, such a bot task would automatically evaluate the article as C-class for WikiProject B.
If you think auto-assessment might benefit this project, consider discussing it with other members here. For more information or to request an auto-assessment run, please visit User:BU RoBOT/autoassess. This is a one-time message to alert projects with over 1,000 unassessed articles to this possibility. ~ Rob Talk 22:22, 3 June 2016 (UTC)
Can someone from the project rescue the one-line stub Terbium difluoride? The editor specifically claims his incompetence on the topic and claims that the compound is "hypothetical" and "might exist" (see the initial stub he wrote). I placed a PROD tag but changed my mind after seeing that a few webpages at least seem to confirm the existence of the molecule. Help would be appreciated so thanks in advance! Pichpich ( talk) 22:26, 11 June 2016 (UTC)
I guess that there are more of this nearly-hypothetical compounds throughout the periodic table - where most do not warrant any article by themselves (as would be my judgement for this one). Making a rough split, 'binary halides of transition metals' and 'binary halides of lanthanides and actinides' might make two articles, where most of those could be listed (similarly one could consider for oxides/sulfides, and possibly carbides or nitrides), and incorporate (and redirect) all of these there. One could also park there the ones which are a bit more real, but not particularly notable (lower notability threshold: at least have references describing (computational) properties; higher notability threshold "real life 'use' (if only to chemists)"). -- Dirk Beetstra T C 12:05, 14 June 2016 (UTC)
Comments at Talk:Polyethylene glycol#Merge Macrogol? would be welcome. -- ἀνυπόδητος ( talk) 12:48, 22 June 2016 (UTC)
I was looking at the double bond article and noticed a table with links for O=O and S=S. Since both are diradical ground states, I was wondering about this being misleading then went to the disulfur article and found the image at right in the infobox. Can anyone provide something more suitable and chemically accurate? Perhaps a space filling model, or something akin to the approach taken at oxygen where spectral lines and a discharge tube are shown? Thanks, EdChem ( talk) 09:51, 9 July 2016 (UTC)
File:5F-AMB structure.png is used to illustrate the structure of this compound but has an (S) included indicating stereochemistry, but appearing like a sulfur atom. Would someone be willing to upload a new image (SVG, perhaps?) either without the (S) or with it not over the structure? Thanks, EdChem ( talk) 14:26, 1 August 2016 (UTC)
Calcium chloride, an article that you or your project may be interested in, has been nominated for an individual good article reassessment. If you are interested in the discussion, please participate by adding your comments to the reassessment page. If concerns are not addressed during the review period, the good article status may be removed from the article. BlueMoonset ( talk) 04:42, 19 August 2016 (UTC)
Template:Piperazines has been nominated for deletion. WikiProject Chemicals participants may be interested in contributing to the discussion at Wikipedia:Templates_for_discussion/Log/2016_August_29#Template:Piperazines. -- Ed ( Edgar181) 19:01, 30 August 2016 (UTC)
Many participants here create a lot of content, have to evaluate whether or not a subject is notable, decide if content complies with BLP policy, and much more. Well, these are just some of the skills considered at Wikipedia:Requests for adminship.
So, please consider taking a look at and watchlisting this page:
You could be very helpful in evaluating potential candidates, and even finding out if you would be a suitable RfA candidate.
Many thanks and best wishes,
Anna Frodesiak ( talk) 03:43, 1 September 2016 (UTC)
Would anyone here be willing to do a review of the "Chemistry" section of β-hydroxy β-methylbutyric acid at its FAC nomination? One reviewer there ( Nergaal) suggested that a chemist or someone with a strong chemistry background needs to look at and review that section. I'd really appreciate it if one of you takes on a review at the FAC nomination or even just offers some constructive, actionable feedback of the article's chemistry section. Seppi333 ( Insert 2¢) 22:07, 9 September 2016 (UTC)
I've got a quick question about the melting point of β-Hydroxy β-methylbutyric acid (aka 3-Hydroxyisovaleric acid / β-Hydroxyisovaleric acid). I've found 3 sources† that list different MPs and BPs for the compound:
Of these sources, only chemspider cites another source; hence, I assume the BP of 302.808 °C @ 760 mmHg is correct, but I'm still not really sure which MP to use. I was wondering if any of you knew of any database sources that corroborate the MP values (the only databases that I've checked are the ones currently listed in the article's drugbox); if not, should I just forego adding a MP to the drugbox?
Seppi333 ( Insert 2¢) 19:11, 10 August 2016 (UTC)
Addressed issue with images
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Would anyone be willing to redraw File:Calcium hydroxymethylbutyrate skeletal.svg and File:Hydroxymethylbutyric acid.png in svg so that the lines in these diagrams and the placement of the hydroxy group are consistent with how it's drawn in File:HMB synthesis.svg? I nominated this article at FAC so I figured it'd be best if the structure diagrams for HMB were uniform throughout the article. Seppi333 ( Insert 2¢) 00:23, 20 August 2016 (UTC)
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There are two areas were we could use help for Cocamidopropyl betaine, having to due with how we discuss and label it's production. First, the straightforward need to properly source and present how it is produced. We're currently linking to Organic synthesis, which appears to need large amounts of work itself. I'm wondering it might be better not to link to Organic synthesis, but a better quality article on the same topic, as Organic synthesis appears to be more than a bit of a POVFork. I assume there are standard, reliable sources available for how it is produced that editors that frequent this talk page would know.
Second, this chemical is apparently identified as an acceptable ingredient for "natural" products, and there is some dispute over whether or not it should be. This dispute may be nothing more than opposing marketing strategies. No sources have been offered to verify any of this, and the ip that repeatedly brought it up is now focusing on the production aspect instead.
So, we could use help with using proper terminology in the article, linking to proper related articles, and finding sources, especially for how cocamidopropyl betaine is produced. -- Ronz ( talk) 17:52, 9 September 2016 (UTC)
For whatever reasons, an editor has started adding the template {{Hydrides by group}} to all hydrocarbons. That would be a lot of articles. Is this template helpful for readers? My recommendation is that articles be kept austere of tangential information for these reasons: 1) Readers seeking info about 1-octene is extremely unlikely to want to see the periodic table of hydride chemistry (CuH, TiHx etc). 2) Wikipedia is not a textbook. 3) What next? A template for carbon compounds? A separate template for alkenes? One for amines. So for an organometallic cmpd or normally complex natural product, the bottom of the article would have say 10 templates? So the community might think this through. -- Smokefoot ( talk) 13:13, 22 September 2016 (UTC)
I've added labels to the images at Template:Hydrides by group. Currently H2 and HD are listed as hydrogen halides, which they aren't. Should either of these be included at all, given binary hydrides implies hydrogen with some other element? Also, any reason for separating borane and diborane under "boranes" but away from all the other boranes? Thoughts? EdChem ( talk) 06:10, 23 September 2016 (UTC)
It's worth noting that hydrocarbons are unlike any other hydrides on this list, in that Carbon is more electronegative than Hydrogen. As such you basically never see hydride abstraction, but you do get addition or substitution reactions instead. Take the simple reaction of a hydride with an acid: methane will react with superacids to give Methanium, which is essentially stable (under the extreme condition at which it is formed). You don't see the abstraction reaction:
CH4 + H+ → CH3+ + H2
As such I don't think they belong on this list, as they don't display hydride chemistry. I understand why they were added, it fills in a black area of a table, which is something that all scientists find very appealing. Unfortunately nature doesn't always conform to well ordered lists and these materials do not belong - or if we are going to include them we should probably explain ourselves somewhere. -- Project Osprey ( talk) 09:40, 23 September 2016 (UTC)
This article is nominated for deletion at Wikipedia:Articles for deletion/3-Methylcyclopropene. Contribution from participants of this WikiProject would be helpful. ChemNerd ( talk) 14:39, 23 September 2016 (UTC)
I'm not sure if this should have been posted some place on Wikimedia Commons, but I don't think there's a place to request files of models of molecules, so I'll out this here instead.
Reviving an archived discussion: the file for disulfur is horribly inconsistent with all the other homonuclear diatomic molecules, which have space-filling models compared to this weird ball-and-stick thing.
On a similar note, no 3D model seems to exist for diatomic carbon. Could one be made? I don't have the neccesary programs.
- AwesoMan3000 ( talk) 17:16, 21 September 2016 (UTC)
Do we really want to have such articles with three chemboxes of different isomers? -- Leyo 08:45, 4 October 2016 (UTC)
Just to announce you than thanks to the work of @ Sebotic:, Wikidata increases its coverage of chemicals with a total of ~98'000 chemicals having an item. All data were imported from PubChem and ChEBI and respect the rules about sources leading to a high improvement of the data quality. Right now an important step has to start to curate the data especially to merge duplicated items. You are welcome to take part to this action and you can get in touch with the Chemistry project in WD for details.
From that work additional importations can start in order to add more identifiers but please announce your intention of data import before any huge importation in order to coordinate the work of bots and of contributors curating the conflicts. Snipre ( talk) 10:09, 12 October 2016 (UTC)
See Special:Contributions/Raffinate2 -bunch of recent edits like this. Pinging User:Raffinate2 and asking folks here what they think. Jytdog ( talk) 08:48, 8 October 2016 (UTC)
Something seems to be wrong since the infobox of both compounds contains the CAS RN 91449-79-5. If a correction is made, it needs to be done in the corresponding Wikidata item, too. -- Leyo 12:07, 1 October 2016 (UTC)
I was unable to find the CAS numbers for the following compounds:
Does anyone have access to SciFinder? -- Leyo 08:39, 2 November 2016 (UTC)
Does polybutyrate have a CAS RN at all? -- Leyo 15:36, 3 November 2016 (UTC)
Hi, I am having a problem with this image and the images I made that were based on it. I am not sure if it is accurate, but I am equally unsure of the correct names for these stereoisomers.
See the relevant talk page for more details.
- Jynto ( talk) 16:34, 3 November 2016 (UTC)
As part of expanding the recent aluminium triacetate article, I have uploaded File:CaAl(OH)(H2O)Az2 dihydrate.png as an image of one hypothesised structure formed when aluminium triacetate acts as a mordant with alizarin. The image looks poor, so if someone would re-draw it as an .SVG file, that would be excellent. Also, I have found that I could not tag it with the usual PD-chem template as it has been deleted. I have requested it be restored at Wikipedia:Requests_for_undeletion#Template:PD-chem and invite comment from anyone with a view on it being restored or remaining deleted. I have also posted to WT:CHEMISTRY. EdChem ( talk) 01:43, 23 November 2016 (UTC)
A request for comment has been made at the above link. Your input is welcome. Boghog ( talk) 16:46, 27 November 2016 (UTC)
A request for comment has been made at the above link. Your input is welcome. Boghog ( talk) 11:51, 30 October 2016 (UTC)
c1c/c/2c\3/c(c3)c4/c(c/5\c(c2c1)c5)/ccc4 is a SMILES of trans-Bicalicene. But, Jmol can't recognize c1c/c/2c\3/c(c3)c4/c(c/5\c(c2c1)c5)/ccc4 as an aromatic molecule. [1] -- Abelium ( talk) 16:01, 6 December 2016 (UTC)
Greetings WikiProject Chemicals/Archive 2016 Members!
This is a one-time-only message to inform you about a technical proposal to revive your Popular Pages list in the 2016 Community Wishlist Survey that I think you may be interested in reviewing and perhaps even voting for:
If the above proposal gets in the Top 10 based on the votes, there is a high likelihood of this bot being restored so your project will again see monthly updates of popular pages.
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Thank you for your consideration. Please note that voting for proposals continues through December 12, 2016.
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Hi, can someone give me some explanation about the differences between these two compounds: (Cyano-κC)potassium and [http://www.chemspider.com/Chemical-Structure.8681.html POTASSIUM CYANIDE ? Is it just a problem of structure drawing or the first compound is a real and stable compound ? Thanks Snipre ( talk) 17:47, 6 December 2016 (UTC)
Hello again WP Chemicals members! I also noticed that you make extensive use of RecentChangesLinked to produce change patrols in a "Recent changes" template. Here's a couple Wishlist Survey proposals related to making these patrols more productive:
Please consider and vote on these by December 12. Thank you again for your time! Stevie is the man! Talk • Work 16:00, 8 December 2016 (UTC)
Which is the most correct structure for SeSn ? A covalent bond or a ionic bond ? See the table
Database | Covalent | Ionic |
---|---|---|
Wikidata | Q6589976 | Q27283356 |
PubChem | 6432049 | 9877645 |
ChemSpider | [www.chemspider.com/Chemical-Structure.4937309.html 4937309] | [www.chemspider.com/Chemical-Structure.8053322.html 8053322] |
InChI | 1S/Se.Sn | 1S/Se.Sn/q-2;+2 |
InChIKey | MFIWAIVSOUGHLI-UHFFFAOYSA-N | LYZMBUYUNBCSMW-UHFFFAOYSA-N |
Snipre ( talk) 15:45, 8 December 2016 (UTC)