This page 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. |
For other talk page archives see User talk:Walkerma/Archives. Other close archives include:
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Hi Martin, I did some housekeeping on the Chemistry wikiproject. My intention is to give the various effort a combination, so that they can be better together than separate. Please discuss Wim van Dorst 18:56, 2005 Apr 10 (UTC).
Thanks for all of your work on this stuff- I feel comfortable with chemistry but get out of my depth when I start getting involved with templates and so on. Walkerma 22:28, 10 Apr 2005 (UTC)
Since you seem interested in chlorides, please see WikiProject Chemicals. H Padleckas 16:45, 18 Apr 2005 (UTC)
Glad you like the phosphorus halides stublet, and thanks for the details on PI5. You guessed correctly that I didn't have the ChemComm in front of me, but the idea that PI5 is unstable with respect to reductive elimination of I2 seems eminently believable, especially if it's someone like Thomas Klapötke who's saying it!
As for phosphorus triiodide, I deliberately left this one to you as its seems that its main interest is as a reagent in organic chemistry. It might be worth checking the claim in Greenwood & Earnshaw that it is useful as a mild oxygen-atom acceptor. 22:50, 22 May 2005 (UTC)
See Talk:Phosphorus tribromide and Phosphorus chlorides. H Padleckas 20:12, 21 Apr 2005 (UTC)
See end of User Talk:H Padleckas about Phosphorus chloride pictures and response regarding Phosphorus trichloride review. H Padleckas 22:08, 6 May 2005 (UTC)
Also, in case you haven't seen it yet, see the my POCl3 picture in Phosphorus chlorides and my response to your question on the 103° bond angle reference question on my talk page: User talk:H Padleckas. H Padleckas 09:08, 19 May 2005 (UTC)
I now have confirmation that phosphorus trifluoride has no large-scale, legitimate industrial uses. However this is not because of toxicity or hydrolysis, simply because its notable use is not large-scale and is no longer legitimate... As for Wikipedia:WikiProject_Chemicals, I consider myself a minor participant. For the moment I am working through cleanup, including cleanup of Category:Chemistry stubs but also a lot of translation work. So far my only original chemical contribution is stibine! All the same, rhodium(III) chloride, iridium(III) chloride, Wilkinson's compound and Vaska's compound are on my to do list, and I will take on zirconium tetrachloride and hafnium tetrachloride if you are doing the oxides. My other priority is to improve the level of safety information in these articles, but one thing at a time! All the best, and see you on the talk pages! Physchim62 19:25, 10 May 2005 (UTC)
Thanks for the support on the List of Schedule 1 substances (CWC) VfD, but you missed the crucial clue in the Arras free beer competition! Phosphorus trifluoride is a chemical weapons precursor, notably in the "military" syntheses of Sarin and Soman (info is PD, but you will excuse me for not shouting the links from the rooftops). Terrorists ( Aum Shinrikyo in the Sarin gas attack on the Tokyo subway) and (apparently) the Iraqi government used a somewhat different route to the same compounds (see note above). Otherwise, I agree with your comment that we cannot start making MSDS's for the compounds, but neither can we ignore the safty issue altogether: the way that I see around this problem is to provide a collection of official safety data in the same way that we try to for, e.g., thermodynamic data. See my (still incomplete) article on Directive 67/548/EEC and links thereto to get some idea. Finally, I have to admit that the articles on Wilkinson's catalyst and Vaska's complex are not my work - I only did copy-editing on them once I found them. Physchim62 20:05, 16 May 2005 (UTC)
FREE BEER anyway, seeing as I've had to withdraw my complaint about the preparation of PF3! Only had to go to Lens to do so, and it was sort of on my way home from work! I also picked up enough info to try for a stubbish phosphorus halides page; it will appear here first for comments.
USELESS FACT OF THE EVENING: not even ja: has a phosphorus trichloride page (they have some 600 other chemical compound pages), so we're not doing too badly.
ARRAS FREE BEER QUESTION: which post-war British Prime-Minister has a Ph.D. in Chemistry? Physchim62 19:15, 18 May 2005 (UTC)
Yes, Margaret Hilda Roberts has a Ph.D. in Chemistry. Rumour has it that it was only awarded only the understanding that she would never use it professionally (she studied Law afterwards, but never practised that either). She is also (as PM) supposed to have stopped a draft directive that would have forbidden the production of compounds for which no safety data was available (imagine chemical research...) The rumours are, or course, unverifiable (but persistant)! As for editor bias, I was born about 15 miles from Scunthorpe, 'nuff said! Physchim62 22:04, 18 May 2005 (UTC)
You asked for it.
Wim van Dorst 18:24, 2005 Jun 6 (UTC).
Very amusing, I'm sure, now deleted thank you. I'd have chosen a rather prettier picture myself, like
Image:Mirren.jpg. By the way, Wim, I should perhaps mention that I have put
User:Wimvandorst up as a Vfd candidate- not the user page, the user himself.
Walkerma 18:53, 6 Jun 2005 (UTC)
It wouldn't work: Mirren doesn't have glasses ;-).
PS. Your picture is still on Wikipedia in Image:Walkerma.jpg available. If you don't want that, it really should be deleted. Of course I'm quite willing to delete it, but perhaps you want to use it for your homepage or so. And I checked the Vfd page. Wim van Dorst 20:57, 2005 Jun 6 (UTC).
I will leave it up- it's not as bad as most pictures of me- I will use it from time to time on my user page. Cheers, Walkerma 04:32, 7 Jun 2005 (UTC)
For more serious matters, I will put any phosphorus halides article in my userspace(at least initially): I have already mentioned my misgivings about the phosphorus chlorides article, but it has the undeniable virtue of being available! After verification, the Preparation sections of Rhodium(III) chloride and Iridium(III) chloride are pretty much ready: I am willing to take on molybdenum trioxide and molybdenum disulfide as well, although I am currently short of the structure diagrams that these articles should really have. Physchim62 22:04, 18 May 2005 (UTC)
Don't expect a novel-length article on PuO2, there's just not enough that's worth saying about it. MoO3 is another story! This will need a project to link through to articles on the polyoxomolybdates and on its analytical uses (at the very least). MoS2 looks promising as a candidate to take through to Peer Review: the subject is reasonably self-contained and of general interest. Otherwise, I'm doing remedial cleanup work around group 17 (see, e.g. chlorine fluorides): the noble gas compounds ( perxenate, xenon tetroxide, xenon hexafluoroplatinate etc.) will need pulling into shape as well. And I guess my employers will want some work from me before the end of term as well! Physchim62 22:50, 22 May 2005 (UTC)
Now moved to Wikipedia_talk:WikiProject_Chemicals
Please see comment on NMR Spectroscopy at the bottom of the web page in Wikipedia talk:WikiProject Chemicals. H Padleckas 08:59, 27 May 2005 (UTC)
Hello Walkerma! I really like the images you've made for the Wittig reaction article. I have one minor comment, and I hope this isn't too nit-picky. I think the literature reference is very important to include, but not in the image itself. I would consider the literature reference to be "metadata", which should be included in the image description. I wouldn't change any of the images already made, just future images. As I said, this is very minor, but just something I wanted to bring up. ~K 04:19, 2 Jun 2005 (UTC)
OK, I will follow your suggestion in future. I may redo the Schlosser image anyway, since I inadvertently wrote the "bold" in wikicode instead of real bold- a sure sign I'm spending too much time on Wikipedia! I put the ref in because I can imagine these images (being PD) getting copied and recopied- I see this in students papers all the time- and I judged that having the reference in the image was better. Walkerma 04:26, 2 Jun 2005 (UTC)
Sorry about PABA. Didn't realise. Shame Mediawiki does not document page moves in the history. JFW | T@lk 08:01, 6 Jun 2005 (UTC)
Hey Walkerma, I read the Menthol article, and it looks really great. You are quite a prolific wikipedian. I like your image of the synthesis of menthol from myrcene. Hopefully, you have it saved somewhere, because you're missing a double bond in the top right structure. I don't mean to be nit-picky, but I thought I should mention it. ~K 5 July 2005 19:24 (UTC)
Hey, I found the NFPA rating for menthol and put it on the page. I also narrowed the chembox a wee bit. The page looks great. And thanks for fixing the blooper. ~K 7 July 2005 04:10 (UTC)
There isn't anything special here: the wiki interpreter just interpretes whitespace differently than an HTML-browser. For Wiki a hard return is a line break, for HTML it is just white space, thus to be ignored. Making an empty line in Wiki-editing is therefore two line breaks, and in HTML that is still ignorable whitespace. And Wiki does odd things with two line breaks, e.g., it inserts 1.5 empty line on what you see on your webpage (depending on which browser you use). A simple recommendation is:
BAD | GOOD |
---|---|
do not
use (double) hard returns |
but use inline <br/> instead |
and another simple recommendation:
GOOD | BAD | GOOD |
---|---|---|
don't expect horizontal alignment |
of two
columns, even if they have the same number of
|
Just put one info-line in. |
Note that the results as you see them here are highly browser dependent. Depending on the browser, these two tables may show you small oddities or larger ones. Success with taking precautions against it. Wim van Dorst July 7, 2005 20:39 (UTC).
Thank you for contributing to Wikipedia:Naming conventions (chemistry). I have now summarized the discussion on that page and added certain points which have been discussed at Wikipedia:WikiProject Chemicals. Any comments, and especially improvements, on the results would be more than welcome. Physchim62 7 July 2005 11:00 (UTC)
Yeah, right, only two 'cleanups', and now to trace who put a trifluoride under the heading of other ions. I'll help you: it was this guy. As faithful table converter, I of course kept this kind of 'worthwhile' information in ;-). Wim van Dorst July 7, 2005 21:33 (UTC).
This page 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. |
For other talk page archives see User talk:Walkerma/Archives. Other close archives include:
Archive1 — Archive2 — Archive4 — Archive5 — Archive6 — Archive7 — Archive8 — Archive9 — Archive10
Hi Martin, I did some housekeeping on the Chemistry wikiproject. My intention is to give the various effort a combination, so that they can be better together than separate. Please discuss Wim van Dorst 18:56, 2005 Apr 10 (UTC).
Thanks for all of your work on this stuff- I feel comfortable with chemistry but get out of my depth when I start getting involved with templates and so on. Walkerma 22:28, 10 Apr 2005 (UTC)
Since you seem interested in chlorides, please see WikiProject Chemicals. H Padleckas 16:45, 18 Apr 2005 (UTC)
Glad you like the phosphorus halides stublet, and thanks for the details on PI5. You guessed correctly that I didn't have the ChemComm in front of me, but the idea that PI5 is unstable with respect to reductive elimination of I2 seems eminently believable, especially if it's someone like Thomas Klapötke who's saying it!
As for phosphorus triiodide, I deliberately left this one to you as its seems that its main interest is as a reagent in organic chemistry. It might be worth checking the claim in Greenwood & Earnshaw that it is useful as a mild oxygen-atom acceptor. 22:50, 22 May 2005 (UTC)
See Talk:Phosphorus tribromide and Phosphorus chlorides. H Padleckas 20:12, 21 Apr 2005 (UTC)
See end of User Talk:H Padleckas about Phosphorus chloride pictures and response regarding Phosphorus trichloride review. H Padleckas 22:08, 6 May 2005 (UTC)
Also, in case you haven't seen it yet, see the my POCl3 picture in Phosphorus chlorides and my response to your question on the 103° bond angle reference question on my talk page: User talk:H Padleckas. H Padleckas 09:08, 19 May 2005 (UTC)
I now have confirmation that phosphorus trifluoride has no large-scale, legitimate industrial uses. However this is not because of toxicity or hydrolysis, simply because its notable use is not large-scale and is no longer legitimate... As for Wikipedia:WikiProject_Chemicals, I consider myself a minor participant. For the moment I am working through cleanup, including cleanup of Category:Chemistry stubs but also a lot of translation work. So far my only original chemical contribution is stibine! All the same, rhodium(III) chloride, iridium(III) chloride, Wilkinson's compound and Vaska's compound are on my to do list, and I will take on zirconium tetrachloride and hafnium tetrachloride if you are doing the oxides. My other priority is to improve the level of safety information in these articles, but one thing at a time! All the best, and see you on the talk pages! Physchim62 19:25, 10 May 2005 (UTC)
Thanks for the support on the List of Schedule 1 substances (CWC) VfD, but you missed the crucial clue in the Arras free beer competition! Phosphorus trifluoride is a chemical weapons precursor, notably in the "military" syntheses of Sarin and Soman (info is PD, but you will excuse me for not shouting the links from the rooftops). Terrorists ( Aum Shinrikyo in the Sarin gas attack on the Tokyo subway) and (apparently) the Iraqi government used a somewhat different route to the same compounds (see note above). Otherwise, I agree with your comment that we cannot start making MSDS's for the compounds, but neither can we ignore the safty issue altogether: the way that I see around this problem is to provide a collection of official safety data in the same way that we try to for, e.g., thermodynamic data. See my (still incomplete) article on Directive 67/548/EEC and links thereto to get some idea. Finally, I have to admit that the articles on Wilkinson's catalyst and Vaska's complex are not my work - I only did copy-editing on them once I found them. Physchim62 20:05, 16 May 2005 (UTC)
FREE BEER anyway, seeing as I've had to withdraw my complaint about the preparation of PF3! Only had to go to Lens to do so, and it was sort of on my way home from work! I also picked up enough info to try for a stubbish phosphorus halides page; it will appear here first for comments.
USELESS FACT OF THE EVENING: not even ja: has a phosphorus trichloride page (they have some 600 other chemical compound pages), so we're not doing too badly.
ARRAS FREE BEER QUESTION: which post-war British Prime-Minister has a Ph.D. in Chemistry? Physchim62 19:15, 18 May 2005 (UTC)
Yes, Margaret Hilda Roberts has a Ph.D. in Chemistry. Rumour has it that it was only awarded only the understanding that she would never use it professionally (she studied Law afterwards, but never practised that either). She is also (as PM) supposed to have stopped a draft directive that would have forbidden the production of compounds for which no safety data was available (imagine chemical research...) The rumours are, or course, unverifiable (but persistant)! As for editor bias, I was born about 15 miles from Scunthorpe, 'nuff said! Physchim62 22:04, 18 May 2005 (UTC)
You asked for it.
Wim van Dorst 18:24, 2005 Jun 6 (UTC).
Very amusing, I'm sure, now deleted thank you. I'd have chosen a rather prettier picture myself, like
Image:Mirren.jpg. By the way, Wim, I should perhaps mention that I have put
User:Wimvandorst up as a Vfd candidate- not the user page, the user himself.
Walkerma 18:53, 6 Jun 2005 (UTC)
It wouldn't work: Mirren doesn't have glasses ;-).
PS. Your picture is still on Wikipedia in Image:Walkerma.jpg available. If you don't want that, it really should be deleted. Of course I'm quite willing to delete it, but perhaps you want to use it for your homepage or so. And I checked the Vfd page. Wim van Dorst 20:57, 2005 Jun 6 (UTC).
I will leave it up- it's not as bad as most pictures of me- I will use it from time to time on my user page. Cheers, Walkerma 04:32, 7 Jun 2005 (UTC)
For more serious matters, I will put any phosphorus halides article in my userspace(at least initially): I have already mentioned my misgivings about the phosphorus chlorides article, but it has the undeniable virtue of being available! After verification, the Preparation sections of Rhodium(III) chloride and Iridium(III) chloride are pretty much ready: I am willing to take on molybdenum trioxide and molybdenum disulfide as well, although I am currently short of the structure diagrams that these articles should really have. Physchim62 22:04, 18 May 2005 (UTC)
Don't expect a novel-length article on PuO2, there's just not enough that's worth saying about it. MoO3 is another story! This will need a project to link through to articles on the polyoxomolybdates and on its analytical uses (at the very least). MoS2 looks promising as a candidate to take through to Peer Review: the subject is reasonably self-contained and of general interest. Otherwise, I'm doing remedial cleanup work around group 17 (see, e.g. chlorine fluorides): the noble gas compounds ( perxenate, xenon tetroxide, xenon hexafluoroplatinate etc.) will need pulling into shape as well. And I guess my employers will want some work from me before the end of term as well! Physchim62 22:50, 22 May 2005 (UTC)
Now moved to Wikipedia_talk:WikiProject_Chemicals
Please see comment on NMR Spectroscopy at the bottom of the web page in Wikipedia talk:WikiProject Chemicals. H Padleckas 08:59, 27 May 2005 (UTC)
Hello Walkerma! I really like the images you've made for the Wittig reaction article. I have one minor comment, and I hope this isn't too nit-picky. I think the literature reference is very important to include, but not in the image itself. I would consider the literature reference to be "metadata", which should be included in the image description. I wouldn't change any of the images already made, just future images. As I said, this is very minor, but just something I wanted to bring up. ~K 04:19, 2 Jun 2005 (UTC)
OK, I will follow your suggestion in future. I may redo the Schlosser image anyway, since I inadvertently wrote the "bold" in wikicode instead of real bold- a sure sign I'm spending too much time on Wikipedia! I put the ref in because I can imagine these images (being PD) getting copied and recopied- I see this in students papers all the time- and I judged that having the reference in the image was better. Walkerma 04:26, 2 Jun 2005 (UTC)
Sorry about PABA. Didn't realise. Shame Mediawiki does not document page moves in the history. JFW | T@lk 08:01, 6 Jun 2005 (UTC)
Hey Walkerma, I read the Menthol article, and it looks really great. You are quite a prolific wikipedian. I like your image of the synthesis of menthol from myrcene. Hopefully, you have it saved somewhere, because you're missing a double bond in the top right structure. I don't mean to be nit-picky, but I thought I should mention it. ~K 5 July 2005 19:24 (UTC)
Hey, I found the NFPA rating for menthol and put it on the page. I also narrowed the chembox a wee bit. The page looks great. And thanks for fixing the blooper. ~K 7 July 2005 04:10 (UTC)
There isn't anything special here: the wiki interpreter just interpretes whitespace differently than an HTML-browser. For Wiki a hard return is a line break, for HTML it is just white space, thus to be ignored. Making an empty line in Wiki-editing is therefore two line breaks, and in HTML that is still ignorable whitespace. And Wiki does odd things with two line breaks, e.g., it inserts 1.5 empty line on what you see on your webpage (depending on which browser you use). A simple recommendation is:
BAD | GOOD |
---|---|
do not
use (double) hard returns |
but use inline <br/> instead |
and another simple recommendation:
GOOD | BAD | GOOD |
---|---|---|
don't expect horizontal alignment |
of two
columns, even if they have the same number of
|
Just put one info-line in. |
Note that the results as you see them here are highly browser dependent. Depending on the browser, these two tables may show you small oddities or larger ones. Success with taking precautions against it. Wim van Dorst July 7, 2005 20:39 (UTC).
Thank you for contributing to Wikipedia:Naming conventions (chemistry). I have now summarized the discussion on that page and added certain points which have been discussed at Wikipedia:WikiProject Chemicals. Any comments, and especially improvements, on the results would be more than welcome. Physchim62 7 July 2005 11:00 (UTC)
Yeah, right, only two 'cleanups', and now to trace who put a trifluoride under the heading of other ions. I'll help you: it was this guy. As faithful table converter, I of course kept this kind of 'worthwhile' information in ;-). Wim van Dorst July 7, 2005 21:33 (UTC).