title: Crystal structure of (3-carb-oxy-prop-yl)tri-phenyl-phospho-nium hexa-fluorido-phosphate.
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.
authors.affiliation: Mississippi State University, Department of Chemistry, 1115 Hand Lab, Box 9573, Mississippi State, MS 39762, USA.
authors.forename: Patrick C
authors.initials: PC
authors.lastname: Hillesheim
authors.affiliation: Mississippi State University, Department of Chemistry, 1115 Hand Lab, Box 9573, Mississippi State, MS 39762, USA.
authors.forename: Kent A
authors.initials: KA
authors.lastname: Scipione
authors.affiliation: Mississippi State University, Department of Chemistry, 1115 Hand Lab, Box 9573, Mississippi State, MS 39762, USA.
authors.forename: Sean L
authors.initials: SL
authors.lastname: Stokes
keywords: crystal structure; hydrogen bonding; phospho­nium salt