The structure of triphenylphosphorus–dibromine, the first crystallographically characterised bromophosphorane, a compound which has the novel four-coordinate molecular Ph3P–Br–Br geometry
作者： Neil Bricklebank , Stephen M. Godfrey , Anthony G. Mackie , Charles A. McAuliffe , Robin G. Pritchard
DOI: 10.1039/C39920000355
关键词: Ionic bonding 、 X-ray crystallography 、 Group (periodic table) 、 Isostructural 、 Stereochemistry 、 Triphenylphosphine 、 Chemistry 、 Molecule 、 Adduct 、 Crystal structure
摘要: Triphenylphosphorus–dibromine is shown by X-ray crystallography to have a four-coordinate Ph3P–Br–Br ‘spoke’ structure and isostructural with Ph3P–I–I Ph3As–I–I; thus forcing us question the conventional belief that tertiary-organo group 15 adducts dihalogens either pentacoordinate R3EX2 or ionic [R3EX]+X– structures in solid state.
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