title: Crystal structure of bis-(3,3-dimethyl-2-oxobut-yl)di-phenyl-phospho-nium bromide chloro-form monosolvate.
abstract: In the title salt solvate, C24H32O2P(+)·Br(-)·CHCl3, the P atom has a distorted tetra-hedral geometry, and the planes of the phenyl rings form a dihedral angle of 71.86 (14)° with one another. The bromide anion is disordered and was modelled over three positions (occupancy ratio 0.50:0.35:0.15). The crystal also contains one disordered chloro-form solvent mol-ecule that was modeled over three positions (occupancy ratio 0.50:0.35:0.15). Weak inter-molecular inter-actions (C-H⋯Br and C-H⋯O) exist between the complex cation and the bromide anion fragments. The resulting supramolecular structure is an oval-shaped arrangement of phosphonium salt molecules that surround the disordered bromide anion.
authors.affiliation: Department of Chemistry, Grand Valley State University, 1 Campus Dr., Allendale, MI 49401, USA.
authors.forename: Alyssa A
authors.initials: AA
authors.lastname: Kulesza
authors.affiliation: Center for Crystallographic Research, Department of Chemistry, Michigan State University, 578 S. Shaw Lane, East Lansing, MI 48824, USA.
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Staples
authors.affiliation: Department of Chemistry, Grand Valley State University, 1 Campus Dr., Allendale, MI 49401, USA.
authors.forename: Shannon M
authors.initials: SM
authors.lastname: Biros
keywords: Arbuzov reaction; bromo­pinacolone; crystal structure; isopropoxydi­phenyl­phosphane; phospho­nium bromide salt