Talk:Delocalized electron

Latest comment: 6 years ago by DMacks in topic Indication of delocation

Delocalization

edit

Physicists, please help us now and create an article for delocalization as is. I don't think that delocalization per se and delocalized electrons are equivalent. --Vuo 00:34, 2 January 2007 (UTC)Reply

Image size problem

edit

Just a heads up to whomever reads this, but the graphic is larger than the resolution of my screen. I'm running Firefox 3.5.3 on Vista SP1 in 1280x760 resolution. Don't know if it's just me or not, but I figure a more experienced wiki user would know what to do. Also, I may be able to help flesh out this article a bit in the future, I'm currently doing undergraduate research at Central Michigan University that involves carbon nano-structures and localization/delocalization. Asrrin29 (talk) 20:45, 1 October 2009 (UTC)Reply

Fixed. DMacks (talk) 21:41, 1 October 2009 (UTC)Reply

Benzene isn't a delocalized system

edit

To quote from WP's own page on benzene:

"The delocalized picture of benzene has been contested by Cooper, Gerratt and Raimondi in their article published in 1986 in the journal Nature. They showed that the electrons in benzene are almost certainly localized, and the aromatic properties of benzene originate from spin coupling rather than electron delocalization.[32] This view has been supported in the next-year Nature issue,[33][34][35] but it has been slow to permeate the general chemistry community."

32: Cooper, David L.; Gerratt, Joseph; Raimondi, Mario (1986). "The electronic structure of the benzene molecule". Nature 323 (6090): 699. doi:10.1038/323699a0. 33: Pauling, Linus (1987). "Electronic structure of the benzene molecule". Nature 325 (6103): 396. doi:10.1038/325396d0. 34: Messmer, Richard P.; Schultz, Peter A. (1987). "The electronic structure of the benzene molecule". Nature 329 (6139): 492. doi:10.1038/329492a0. 35: Harcourt, Richard D. (1987). "The electronic structure of the benzene molecule". Nature 329 (6139): 491.

Surely this deserves at least a mention? — Preceding unsigned comment added by 86.147.66.111 (talk) 13:36, 21 April 2012 (UTC)Reply

Delocalization in insulators

edit

(Disclaimer: I'm a solid state physicist, not a chemist). In my understanding, many insulating materials do in fact have highly delocalized electron states (in the sense of Bloch states), it's just that these states usually remain filled all the time and so they don't participate in charge transport. The example of a `localized' system given in the article, diamond, actually has very wide (~10 eV) valence bands, and the electron velocities in these bands can be as high as in metals.[1] IMHO a better example of a localized system might be an ionic crystal like quartz.

I guess my question is, does delocalization in chemistry vocabulary actually require the ability to conduct charge? If so then it isn't just a property of the molecular orbital but also dependent on filling (Fermi level and all that). — Preceding unsigned comment added by Nanite (talkcontribs) 21:47, 24 May 2013 (UTC)Reply

Indication of delocation

edit

"The fact that the six C-C bonds are equidistant is one indication of this delocalization." Why/How is being equidistant an indication of this delocalization? Symmetry means sharing? Shyguy76767 (talk) 20:54, 27 January 2018 (UTC)Reply

@Shyguy76767: I added some detail explaining the relationship between bond-lengths being equal and electrons being delocalized. Let me know if it helps. DMacks (talk) 21:08, 27 January 2018 (UTC)Reply

Why does the introduction to this article present delocalisation as if it is *different* thing across different fields?

edit

I think in modern day wikipedia we have sub-headings regarding "not to be confused with" or "is referring to xyz" (I don't know your wikspeech).

I think this page's introduction can be changed for the better by someone more knowledgeable and with enough time. Averagepcuser (talk) 25-May-2024 18:09(IST)