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Reductive Catenation of Phosphine Antimony Complexes
Author(s) -
Chitnis Saurabh S.,
Burford Neil,
Weigand Jan J.,
McDonald Robert
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201503074
Subject(s) - catenation , antimony , phosphine , cationic polymerization , chemistry , redox , pnictogen , bicyclic molecule , reductive elimination , medicinal chemistry , combinatorial chemistry , inorganic chemistry , organic chemistry , catalysis , physics , dna , biochemistry , superconductivity , quantum mechanics
Reactions of triarylphosphines with fluoroantimony(III) triflates give phosphine antimony(III) complexes, which undergo spontaneous reductive elimination of fluorophosphonium cations. The resulting phosphine antimony(I) complexes catenate to give the first examples of cationic antimony bicyclic compounds, [(R 3 P) 4 Sb 6 ] 4+ , featuring a bicyclo[3.1.0]hexastibine framework stabilized by four phosphine ligands. The unprecedented 14‐electron redox process illustrates the generality of the reductive catenation method.