Talk:Isovalent hybridization

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	This article was accepted on 19 July 2013 by reviewer Arthur goes shopping (talk · contribs).

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Linking[edit]

Page was linked to other relevant wiki articles in chemistry.--Dasikule (talk) 16:02, 19 July 2013 (UTC)[reply]

linking confirmed V8rik (talk) 21:05, 19 July 2013 (UTC)[reply]

Cleanup[edit]

Today I discovered the creation of this page, and while I think such a page was definitely sorely needed to explain in depth the sp^x indices, we now need to clean things up. Bent's rule has information that overlaps strongly with this page, and I'd suggest merging that here together with a few changes to the Orbital hybridization article (such as the terminology and the main group compounds with lone pairs sections) to link the relevant sections here and streamline the explanations. Could we have a discussion on those?--Officer781 (talk) 03:23, 20 July 2013 (UTC)[reply]

I think this page overlaps strongly with some sections of the Orbital hybridization article and could be merged into that article. The references are mostly organic chemistry books, and when an organic chemist refers to variable hyrbidization, it is understood that this means variable orbital hybridization. So why not just have a section of that article called variable hybridization? Dirac66 (talk) 00:37, 21 July 2013 (UTC)[reply]

I agree that the article should be merged into Bent's rule or Orbital hybridisation, maybe with a section called 'hybridization parameter'. I would prefer to keep Orbital hybridisation purely qualitative. V8rik (talk) 19:46, 21 July 2013 (UTC)[reply]

I made the article for a class project because it was a subject area in organic chemistry I thought was lacking on wiki. I agree that it probably should be incorporated into another page. I think it falls more in line with orbital hybridisation and could have its own section following the types of hybridisation section. However, if you want to keep that page qualitative than this may not be the best option. --24.105.247.124 (talk) 03:55, 24 July 2013 (UTC)[reply]

Hmm. Maybe I'll shift some of the orbital hybridisation content here while keeping Bent's rule separate as a qualitative rule to determine s and p character. And oh, welcome to wikipedia. Nice to have you editing. :) --Officer781 (talk) 10:28, 25 July 2013 (UTC)[reply]

Sounds good to me. I was the IP address above, I didn't realize I wasn't signed in.--Dasikule (talk) 19:34, 27 July 2013 (UTC)[reply]

Isovalent hybridization and second order hybridization[edit]

I believe that variable hybridization is synonymous with the terms "isovalent hybridization" and "second order hybridization". (first order is sp, sp², sp³ in that context). I will leave this a while while I go on holiday and if there are no objections I will add it when I get back.Axiosaurus (talk) 13:18, 22 April 2015 (UTC)[reply]

The origin and meaning of all this nomenclature is quite unclear. Iso is Greek for equal, so what valence is equal to what here? Second order suggests some sort of Perturbation theory or perhaps a power series development in some variable, but why is that relevant here? As for variable hybridization, does this term imply that sp, sp² and sp³ are constant in some way?

I think the simplest term for this concept is fractional hybridization, since it is obvious to any chemistry student that sp, sp² and sp³ refer to combinations of an integer number of s and p orbitals, whereas sp^2.4 for example does not. Or we could follow Coulson (Valence, 2nd ed., Oxford University Press 1961, p.203-5) and refer to nonequivalent hybridization, with the explanation that for sp, sp² and sp³ refer to sets of 2, 3 and 4 equivalent hybrids, but no analogous statement is true for sp^2.4 etc.

Wikipedia of course is supposed to follow the terminology used in the subject literature. So can someone find examples of the use of isovalent and the other terms in reliable sources, and if possible provide the etymology of each term? Dirac66 (talk) 17:56, 20 March 2016 (UTC)[reply]