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Recently a (I believe theoretically) hypervalent carbon atom has been found, bonding to 3 hydrogen and 2 astate atoms. Is this worth mentioning? Source: http://www3.interscience.wiley.com/journal/122518352/abstract?CRETRY=1&SRETRY=0 82.72.78.101 ( talk) 20:40, 15 November 2009 (UTC)
I believe that As is astatine. So this would happen: Anyone near the compound would get radiation poisoning from the astatine. The whole lab would be contaminated, and so would all the gloves, lab coats, and goggles. Astatine is extremely radioactive. Don't play with that stuff(unless you're trying to keep the lab to yourself). 03:41, 9 December 2016 (UTC)03:41, 9 December 2016 (UTC)03:41, 9 December 2016 (UTC)~ 32ieww ( talk) 03:41, 9 December 2016 (UTC)
This whole article is shameful. It departs from an obscure paper from 1969 that is not generally accepted in chemistry at all and makes statements that are blatantly untrue, e.g. that MO-theory assumes totally outdated and disproven things like sp3d hybridization. Modern MO-theory does not make a priori assumptions about hybridization at all, but combines atomic orbitals according to the irreducible representations (irrep) of the symmetry group at hand. Only if two molecular orbitals transform as the same irrep can there be mixing. For main group elements it has long been shown that d-levels are far too high in energy to make any contribution. Jcwf ( talk) 15:55, 21 January 2010 (UTC)
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In the paragraph on Pentacoordinated silicon, as I read it, is a contradiction between the text accompanying the illustration:
and the text just below it:
The way I read both sentences, the first is stating the oxygen-silicon bond lengthens going from iodine to chlorine, the second claims it to shorten. Who knows the correct answer? T.vanschaik ( talk) 15:51, 25 May 2012 (UTC)
In the section on Reactivity the rate of the reaction is gviven in "Kobs, M−2s−1". Although the unit of this (or these?) "kobs" is given, what is it refering to? If it is an acronym, what does it mean? T.vanschaik ( talk) 08:50, 29 May 2012 (UTC)
I propose that Three-center four-electron bond be merged into this article as the two are intrinsically linked; not only that, but the 3c-4e is only one of many types of hypercoordinate bonds, where molecules like sulfur hexafluoride are described by a 7c-12e bond. Therefore the 3c-4e is not an isolable bonding interaction like the 3c-2e which would then deserve its own article.-- Officer781 ( talk) 08:16, 27 March 2013 (UTC)
To Officer 781: have you a source for the comment (in your edit summary today) that 3 of the 15 resonance structures for SF6 are symmetry-forbidden? It is true that 3 structures are trans and the other 12 cis, so the trans structures will have a different (smaller? larger?) weighting in the overall wavefunction than the cis. However it is not all clear to me that the trans structures have zero weighting. Dirac66 ( talk) 14:36, 4 October 2013 (UTC)
The structural drawings for both PF5 and SF6 now show unpaired electrons (on P and F, though not on S), for which I believe there is no experimental evidence in these molecules. All non-hypervalent published structures which I have ever seen follow the octet rule and show ionic structures - PF4+ F- and SF42+ (F-)2. Dirac66 ( talk) 14:36, 4 October 2013 (UTC)
How come there's nothing on Carbon Pentafluoride? I would love to add a page, but all I can say for sure is that the Carbon atom is bonded to five Fluorine atoms because of orbital hybridization. I couldn't even find a single page about CF5 on Google. 32ieww ( talk) 04:54, 23 November 2016 (UTC) 32ieww ( talk) 04:54, 23 November 2016 (UTC)
I heard about it on Outrageous Acts Of Science and saw footage of someone setting it on fire. If so, how could it not exist? 03:43, 9 December 2016 (UTC)03:43, 9 December 2016 (UTC)03:43, 9 December 2016 (UTC)03:43, 9 December 2016 (UTC) 32ieww ( talk) 03:43, 9 December 2016 (UTC)
This is the
talk page for discussing improvements to the
Hypervalent molecule article. This is not a forum for general discussion of the article's subject. |
Article policies
|
Find sources: Google ( books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL |
![]() | This article is rated C-class on Wikipedia's
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![]() | The contents of the Expanded octet page were merged into Hypervalent molecule on 7 September 2012. For the contribution history and old versions of the redirected page, please see its history; for the discussion at that location, see its talk page. |
Recently a (I believe theoretically) hypervalent carbon atom has been found, bonding to 3 hydrogen and 2 astate atoms. Is this worth mentioning? Source: http://www3.interscience.wiley.com/journal/122518352/abstract?CRETRY=1&SRETRY=0 82.72.78.101 ( talk) 20:40, 15 November 2009 (UTC)
I believe that As is astatine. So this would happen: Anyone near the compound would get radiation poisoning from the astatine. The whole lab would be contaminated, and so would all the gloves, lab coats, and goggles. Astatine is extremely radioactive. Don't play with that stuff(unless you're trying to keep the lab to yourself). 03:41, 9 December 2016 (UTC)03:41, 9 December 2016 (UTC)03:41, 9 December 2016 (UTC)~ 32ieww ( talk) 03:41, 9 December 2016 (UTC)
This whole article is shameful. It departs from an obscure paper from 1969 that is not generally accepted in chemistry at all and makes statements that are blatantly untrue, e.g. that MO-theory assumes totally outdated and disproven things like sp3d hybridization. Modern MO-theory does not make a priori assumptions about hybridization at all, but combines atomic orbitals according to the irreducible representations (irrep) of the symmetry group at hand. Only if two molecular orbitals transform as the same irrep can there be mixing. For main group elements it has long been shown that d-levels are far too high in energy to make any contribution. Jcwf ( talk) 15:55, 21 January 2010 (UTC)
![]() |
An image used in this article, File:SF6 MO 1.jpg, has been nominated for speedy deletion for the following reason: All Wikipedia files with unknown copyright status
Don't panic; you should have time to contest the deletion (although please review deletion guidelines before doing so). The best way to contest this form of deletion is by posting on the image talk page.
This notification is provided by a Bot -- CommonsNotificationBot ( talk) 22:02, 8 January 2012 (UTC) |
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An image used in this article, File:SF6 MO 2.jpg, has been nominated for speedy deletion for the following reason: All Wikipedia files with unknown copyright status
Don't panic; you should have time to contest the deletion (although please review deletion guidelines before doing so). The best way to contest this form of deletion is by posting on the image talk page.
This notification is provided by a Bot -- CommonsNotificationBot ( talk) 22:02, 8 January 2012 (UTC) |
In the paragraph on Pentacoordinated silicon, as I read it, is a contradiction between the text accompanying the illustration:
and the text just below it:
The way I read both sentences, the first is stating the oxygen-silicon bond lengthens going from iodine to chlorine, the second claims it to shorten. Who knows the correct answer? T.vanschaik ( talk) 15:51, 25 May 2012 (UTC)
In the section on Reactivity the rate of the reaction is gviven in "Kobs, M−2s−1". Although the unit of this (or these?) "kobs" is given, what is it refering to? If it is an acronym, what does it mean? T.vanschaik ( talk) 08:50, 29 May 2012 (UTC)
I propose that Three-center four-electron bond be merged into this article as the two are intrinsically linked; not only that, but the 3c-4e is only one of many types of hypercoordinate bonds, where molecules like sulfur hexafluoride are described by a 7c-12e bond. Therefore the 3c-4e is not an isolable bonding interaction like the 3c-2e which would then deserve its own article.-- Officer781 ( talk) 08:16, 27 March 2013 (UTC)
To Officer 781: have you a source for the comment (in your edit summary today) that 3 of the 15 resonance structures for SF6 are symmetry-forbidden? It is true that 3 structures are trans and the other 12 cis, so the trans structures will have a different (smaller? larger?) weighting in the overall wavefunction than the cis. However it is not all clear to me that the trans structures have zero weighting. Dirac66 ( talk) 14:36, 4 October 2013 (UTC)
The structural drawings for both PF5 and SF6 now show unpaired electrons (on P and F, though not on S), for which I believe there is no experimental evidence in these molecules. All non-hypervalent published structures which I have ever seen follow the octet rule and show ionic structures - PF4+ F- and SF42+ (F-)2. Dirac66 ( talk) 14:36, 4 October 2013 (UTC)
How come there's nothing on Carbon Pentafluoride? I would love to add a page, but all I can say for sure is that the Carbon atom is bonded to five Fluorine atoms because of orbital hybridization. I couldn't even find a single page about CF5 on Google. 32ieww ( talk) 04:54, 23 November 2016 (UTC) 32ieww ( talk) 04:54, 23 November 2016 (UTC)
I heard about it on Outrageous Acts Of Science and saw footage of someone setting it on fire. If so, how could it not exist? 03:43, 9 December 2016 (UTC)03:43, 9 December 2016 (UTC)03:43, 9 December 2016 (UTC)03:43, 9 December 2016 (UTC) 32ieww ( talk) 03:43, 9 December 2016 (UTC)