CRYSTAL-STRUCTURE OF (PH(3)PNH(2))(4)[SB6 O10CL14]CENTER-DOT-2CH(3)CN

The title compound has been obtained by the reaction of the phosphoran eiminato complex Cl2Sb(NPPh(3)) with chlorine, followed by partial hyd rolysis in acetonitrile. The colourless crystals were characterized by a crystal structure determination. Space group P ($) over bar 1, Z = 2, structure refinement with 8320 observed unique reflections, R = 0.0 63 with I > 2 sigma(I). Lattice dimensions at -70 degrees C: a=1245.0( 6); b=1277.7(8), c=1623.8(9) pm, alpha = 77.97(2)degrees, beta = 86.52 (2)degrees, gamma = 67.07(2)degrees. The compound consists of Ph(3)PNH (2)(+) ions, [Sb6O10Cl14](4-) ions, in which the central unit is a Sb4 O6 Skeleton with a double heterocubane-like arrangement with two missi ng corners, and of included acetonitrile molecules without bonding int eractions.