A determination by electron diffraction of the molecular structure of difluoro(phenyl)phosphine in the gas phase

Abstract

The molecular structure of PPhF₂ in the gas phase has been determined by electron diffraction. Principal bond lengths (r_a) and angles are: P–F 158.0(3), P–C 180.9(7), C–C (mean) 139.2(3), and C–H 110.6(8) pm; F–P–F 102.3(12) and F–P–C 98.8(11)°. The dihedral angle between the ring and FPF bisector is 31(2)°. The structure is compared with those of difluoro(phenyl)phosphine ligands in transition-metal complexes.