A Bromine Adduct of 2,3,6,7,14,15-Hexamethyl-9,10-distibatriptycene. The First Stibonium–Stiborate Zwitterion
- 4 June 2005
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 34 (7) , 966-967
- https://doi.org/10.1246/cl.2005.966
Abstract
2,3,6,7,14,15-Hexamethyl-9,10-distibatriptycene (3) reacted with bromine to give an adduct 4 with the composition of 3·2Br2. X-ray structure analysis and 1H NMR studies revealed that the bromine adduct 4 forms an intramolecular salt composed of a tetracoordinate bromostibonium ion moiety, R3SbBr+, and a hexacoordinate tribromostiborate ion moiety, R3SbBr3−, both in the crystalline state and in solution.Keywords
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