TitleA diradical based on odd-electron σ-bonds.
Publication TypeJournal Article
Year of Publication2020
AuthorsYang W, Zhang L, Xiao D, Feng R, Wang W, Pan S, Zhao Y, Zhao L, Frenking G, Wang X
JournalNat Commun
Date Published2020 Jul 10

The concept of odd-electron σ-bond was first proposed by Linus Pauling. Species containing such a bond have been recognized as important intermediates encountered in many fields. A number of radicals with a one-electron or three-electron σ-bond have been isolated, however, no example of a diradical based odd-electron σ-bonds has been reported. So far all stable diradicals are based on two s/p-localized or π-delocalized unpaired electrons (radicals). Here, we report a dication diradical that is based on two Se∴Se three-electron σ-bonds. In contrast, the dication of sulfur analogue does not display diradical character but exhibits a closed-shell singlet.

PubMed ID32651366
PubMed Central IDPMC7351710
Grant List39837132, 39837123 / / Nanjing Tech University (Nanjing University of Technology) /