An X-ray crystallorgraphic study of the reagent Ph3PCl2; not charge-transfer, R3P–Cl–Cl, trigonal bipyramidal or [R3PCl]Cl but an unusual dinuclear ionic species, [Ph3PCl+⋯Cl–⋯+CIPPH3]Cl containing long Cl–Cl contacts
作者： Stephen M. Godfrey , Charles A. McAuliffe , Robin G. Pritchard , Joanne M. Sheffield
DOI: 10.1039/CC9960002521
关键词: Ionic bonding 、 Crystallography 、 Inorganic chemistry 、 Chemistry 、 Reagent 、 X-ray 、 Stoichiometry 、 Trigonal bipyramidal molecular geometry 、 Charge (physics)
摘要: An X-ray crystallographic study of the reagent Ph3PCl2 reveals it to be [Ph3PCl+⋯Cl–⋯+ClPPh3]Cl and not trigonal bipyramidal, molecular charge-transfer Ph3P–Cl–Cl or simple ionic species [Ph3PCl]Cl; this contrasts with conclusions from all previous spectroscopic data recorded on compounds stoichiometry R3PCl2 by earlier workers, represents first compound formula crystallographically characterised.
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