Diradical
In
degenerate.[1][2] The term "diradical" is mainly used to describe organic compounds, where most diradicals are extremely reactive and in fact rarely isolated. Diradicals are even-electron molecules but have one fewer bond than the number permitted by the octet rule
.
Examples of diradical species can also be found in
Spin states
Diradicals are usually
diamagnetic.[6]
Examples
Stable, isolable, diradicals include
heteroleptic 1,2-dithiolene complexes of d8 transition metal ions show a large degree of diradical character in the ground state.[3]
References
Further reading
- "Diradicals". Meta-synthesis.com.
- Pedersen S, Herek JL, Zewail AH (November 1994). "The validity of the "diradical" hypothesis: direct femtoscond studies of the transition-state structures". Science. 266 (5189): 1359–1364. S2CID 45399626.
- Zewail AH (August 2000). "Femtochemistry: Atomic-Scale Dynamics of the Chemical Bond Using Ultrafast Lasers (Nobel Lecture) Copyright((c)) The Nobel Foundation 2000. We thank the Nobel Foundation, Stockholm, for permission to print this lecture". Angewandte Chemie. 39 (15): 2586–2631. PMID 10934390.