Talk:Singlet oxygen

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Comment to Mathchem271828: In the first paragraph, I think it be more appropriate to use S.I. energy units for a energy difference between the two states instead of giving it as a temperature.

  • A the moment, it reads "The energy difference...is about 11,400 Kelvins... = 7918.1 cm-1" In dimensional terms, of course, neither K nor cm-1 is an energy. Joules everywhere, please -- no Hartrees, kcal, kcal/mole, kJ/mole, BTU, quads, foot-pounds, etc., etc., unless SI is there first.
Wavenumbers is the basic currency that chemists of all types, organic, physical, inorganic.. have an intuitive feel for because we are all familiar with IR spectroscopy. They are a fully accepted currency of energy as are kelvins for questions of thermodynamics. SI units are fine for other areas but not for chemistry, in general. Mathchem271828 00:21, 6 February 2007 (UTC)

lapo_dk

lapo_dk; I'll just throw this out there that the temperature is good for people to put the data into a thermodynamics perspective. The temperature might give you an idea of relative populations of the species. Mathchem271828 19:29, 15 December 2006 (UTC)

That temperature was totally wrong. It didn't take into account the O2's degrees of freedom and lookd like it took two atoms as one free atom. -lysdexia 11:01, 24 March 2007 (UTC)

"72 minutes" is a half-life, right? — Omegatron 00:16, 5 April 2007 (UTC)

Lots of useful information, but the article is barely readable to someone outside the field (a link to nomenclature is not sufficient). 198.202.66.219 23:54, 3 May 2007 (UTC)

Contents

[edit] Energy difference

The article is self-contradictory: In the introductory paragraph the difference to the ground state is given as 7918.1 cm-1, corresponding to an energy of 94.7 kJ/mol or a wavelength of 1263 nm, while later the energy is given as 94.2 kJ/mol. And what does the "3625 kelvin" in the introductory paragraph refer to? It's not E/kB and not the temperature for maximum radiation in Wien's law, neither in the wavelength nor in the frequency view ... and even if it were, we should use a more common notation here. Icek 12:48, 27 August 2007 (UTC)

[edit] Orbital occupancy of the singlet state

Cotton and Wilkinson 6th edition shows 2 singlet states, the 1Δg where both electrons occupy the same orbital and the 1Σg+ where the electrons are of opposite spin but in different orbitals. The latter is higher energy. Axiosaurus 11:50, 9 November 2007 (UTC)

[edit] what image to use

Lets hold on to the original image in the lead. The replacement image is in German! so why not have both images V8rik (talk) 21:15, 11 March 2008 (UTC)

[edit] Image text

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The text in the diagram currently in the article is not in English. -- Beland (talk) 19:09, 2 June 2008 (UTC)