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Radical Cation of Dibenzothiophene Fully Annelated with Bicyclo[2.2.2]octene Units:  X-ray Crystal Structure and Electronic Properties

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posted on 2004-11-11, 00:00 authored by Daisuke Yamazaki, Tohru Nishinaga, Koichi Komatsu
New dibenzothiophene 2 fully annelated with bicyclo[2.2.2]octene units was synthesized and oxidized to stable radical cation salt 2•+SbCl6-, whose structure was determined by X-ray crystallography. Although the intrinsic electronic structure of 2•+ is predicted to be close to structure A, an interaction with the counteranion makes structure B contribute significantly. A part of the salt 2•+SbCl6- underwent rearrangement to arenium ion 6+, whose structure was also clarified by X-ray crystallography.

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