Synthesis and X-ray crystal structure of (triphenylmethyl)trimethylphosphonium tetrafluoroborate

Abstract

The synthesis and X-ray crystal structure of the title compound [Ph₃CPMe₃]BF₄ is reported. Crystals are triclinic with a= 7.8400(9), b= 10.6765(7), c= 12.5116(9)Å, α= 87.165(9), β= 80.994(9), γ= 86.768(9)°, U= 1 032.2 ų, space group P. The structure was solved by direct methods and refined by full-matrix least-squares to R 0.078 for 2 374 diffractometer data. In the cation the P–C(CPh₃) distance [1.895(4)Å] is significantly longer than the P–C(Me) distances [1.787(6)–1.792(6)Å].