Zwitterionic Inorganic Benzene Valence Isomer with σ-Bonding between Two π-Orbitals

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Original languageEnglish
Pages (from-to)11921−11925
Journal / PublicationJournal of the American Chemical Society
Volume140
Issue number38
Early online date12 Sep 2018
Publication statusPublished - 26 Sep 2018

Abstract

Despite the large number of plausible isomers of benzene (C6H6), only four valence isomers [(CH)6] have been experimentally detected, all of which are nonionic and possess skeletal frameworks built from localized C-C bonds. Herein, we present the isolation of a diazatetraborabenzene analogue of a hypothetical zwitterionic valence isomer of benzene. Therein, two electrons are delocalized over the four boron atoms in the six-membered B4N2 ring, which is a result of the σ-bonding interaction between two odd-electron B-B π-orbitals. Simple treatment with a crown ether leads to the formation of a paramagnetic potassium-doped radical ion pair that exhibits a thermally populated triplet character.

Citation Format(s)

Zwitterionic Inorganic Benzene Valence Isomer with σ-Bonding between Two π-Orbitals. / Su, Bochao; Ota, Kei; Xu, Kai; Hirao, Hajime; Kinjo, Rei.

In: Journal of the American Chemical Society, Vol. 140, No. 38, 26.09.2018, p. 11921−11925.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review