Talk:Diradical

message: Thanks for getting involved with diradicals but your internal contradiction tag lacks motivation. Please motivate your edit on this page V8rik 19:19, 8 April 2007 (UTC)

message: [Ar][↑ ][↑ ][↑ ] is a triplet state? 
Where 3 electrons have the same spin and are unpaired?Wolfmankurd 22:51, 7 May 2007 (UTC)
thread_title: Eh?

message: At the moment, these two and rather closely interrelated topics are unnecessarily separated from each other. Perhaps, we might think about moving this over there? Jwuthe2 08:19, 23 May 2007 (UTC)
thread_title: Move to Physics Article "Singlet"?

message: The image of orbitals on the external link is very helpful. Are there any similar images that can be posted here?
Tospik 23:24, 24 July 2007 (UTC)
thread_title:  Image 

message: The article starts off with "In organic chemistry" - diradicals occur in inorganic e.g. singlet and triplet dioxygen are mentioned later. I am reluctant to change the article as the organic stuff is not my area.Axiosaurus 11:42, 9 November 2007 (UTC)
thread_title: Definition

message: IMHO the chemogenesis article link pictures of singlet orbital occupancy are incorrect. A singlet state also occurs when the electrons remain in different orbitals but they have opposite spin.The molecule remains a diradical as both electrons are unpaired. This description of the singlet state is also a problem with the singlet oxygen article and I shall post my concerns there. Axiosaurus 11:42, 9 November 2007 (UTC)
thread_title: Singlet diradical -chemogenesis article reference

message: Please note that biradicals and diradicals are not the same. V8rik (talk) 16:55, 14 February 2008 (UTC)
thread_title:  biradicals and diradicals  

message: "degenerate molecular orbitals (MO) of the same energy "
"Degeneracy" infers orbitals of the same energy, hence "of the same energy" is technically redundant. However, that's not really common knowledge, and there is no Wiki definition of degeneracy that suits chemistry. I propose: "degenerate molecular orbitals (MO), or orbitals of the same energy"
"The electrons can pair up with opposite spin in one MO leaving the other empty. This is called a singlet state."
AFAIK if the two orbitals are near or equal in energy, one electron will reside in each. Due to the spin-pairing energy, there needs to be a certain energy difference for the electrons to reside together in the lower energy of the two orbitals. This will have implications on the first para too.
I'm happy to re-word this but just thought I'd throw it out there as I'm pretty new. Freestyle-69 (talk) 02:43, 18 March 2008 (UTC)
replies: text: Aha, just found Degenerate energy level. Freestyle-69 (talk) 05:23, 18 March 2008 (UTC)

text: Interested in updating the examples section to better reflect diradicals in main group chemistry, namely for carbene/nitrene and their analogues and cyclic compounds (Ex. S2N2 and P2B2) Ngin227 (talk) 00:29, 21 November 2022 (UTC)

text: Also note that diradicaloid (partial diradical character) is a term that is often thrown around with diradicals. Both diradicaloid and diradical also behave differently than monoradicals and closed-shell compounds, which has not been mentioned yet. Ngin227 (talk) 22:03, 22 November 2022 (UTC)
thread_title: Degeneracy and pairing