Crystal structure of triphenylphosphonium­meth­yl­enetrifluoroborate

The title compound, C(19)H(17)BF(3)P {alternative name: triphen­yl[(tri­fluoro­boran­yl)meth­yl]phosphanium}, was formed by the reaction of tri­phenyl­phosphine with potassium iodo­methyl­tri­fluoro­borate. The mol­ecule features a nearly staggered conformation along the P—C bond and a less than staggered conformation along the C—B bond. In the crystal, weak C—H⋯F hydrogen bonds between the meta-phenyl C—H groups and the tri­fluoro­borate B—F groups form chains of R (2) (2)(16) rings along [100]. These chains are are further stabilized by weak C—H⋯π inter­actions. A weak intra­molecular C—H⋯F hydrogen bond is also observed.