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Substitution Reactions at Dipp BIAN Supported Fluoroantimony Cations Yielding Cyanoantimony and Azidoantimony Cations
Riccardo Suter1, Christopher Frazee1, Neil Burford1
1Department of Chemistry, University of Victoria, Victoria, British, Columbia, V8W 3V6, Canada.
Abstract:
This work presents new cationic coordination complexes of antimony with the 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene (Dipp BIAN) ligand system. The fluoroantimony complexes [SbF(Dipp BIAN)][OTf]2 and [SbF2 (Dipp BIAN)][OTf] have been successfully isolated and characterized. The fluorine substituent in the Lewis acidic complex [SbF(Dipp BIAN)][OTf]2 can be selectively replaced without degradation of the Sb-Dipp BIAN interaction to give the first dicationic azido and cyano derivatives, [Sb(CN)(Dipp BIAN)][OTf]2 and [Sb(N3 )(Dipp BIAN)][OTf]2 , which have been isolated and structurally characterized.
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