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Updated: Apr 19, 2026

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI
Published on: November 22, 2016
Crystal structure of (3-carb-oxy-prop-yl)tri-phenyl-phospho-nium hexa-fluorido-phosphate
Patrick C Hillesheim1, Kent A Scipione1, Sean L Stokes1
1Mississippi State University, Department of Chemistry, 1115 Hand Lab, Box 9573, Mississippi State, MS 39762, USA.
Abstract:
In the title mol-ecular salt, C22H22O2P(+)·PF6 (-), the side chain of the cation adopts an anti-gauche conformation [P-C-C-C and C-C-C-C torsion angles = -179.11 (10) and -77.18 (16)°, respectively]. In the crystal, the cations are linked into carb-oxy-lic acid inversion dimers by pairs of O-H⋯O hydrogen bonds. Weak C-H⋯F and C-H⋯(F,F) hydrogen bonds connect the components into a three-dimensional network, but there are no aromatic π-π stacking inter-actions.
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