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Title: Zwitterionic inorganic benzene valence isomer with σ-bonding between two π-orbitals
Authors: Su, Bochao
Ota, Kei
Xu, Kai
Hirao, Hajime
Kinjo, Rei
Keywords: Science::Chemistry
Issue Date: 2018
Source: Su, B., Ota, K., Xu, K., Hirao, H., & Kinjo, R. (2018). Zwitterionic inorganic benzene valence isomer with σ-bonding between two π-orbitals. Journal of the American Chemical Society, 140(38), 11921-11925. doi:10.1021/jacs.8b08025
Journal: Journal of the American Chemical Society
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.
ISSN: 0002-7863
DOI: 10.1021/jacs.8b08025
Rights: © 2018 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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