Tetraphenylphosphonium Hexatungstate(VI) Acetonitrile Solvate

Crystals of the title compound, (C 24 H 20 P) 2 [W 6 O 19 ].2CD 3 CN, are composed of [W 6 O 19 ] 2- anions lying on inversion centres, and Ph 4 P + cations and acetonitrile molecules of solvation in general positions. In the anion, each W atom is bonded to a central O atom, which lies on an inversion centre, a terminal O and four bridging O atoms, with average W-O distances of 2.323(4), 1.714(13) and 1.917 (15) A, respectively.