THE CRYSTAL-STRUCTURE OF THYL)PHENYLPHOSPHINEPLATINUM(II)-TETRAPHENYLBORATE

The structure of [Pt(Et2dtc)(P2P')]BPh4 (Et2dtc = S2CNEt2 and P2P' = P hP(CH2CH2PPh2)2) has been determined from three-dimensional X-ray data . Monoclinic crystals of the complex belong to the space group P2(1)/c with cell dimensions a = 18.375(2), b = 15.724(2), c = 20.426(3) angs trom, beta = 108.85(1)-degrees, V = 5585(3) angstrom3, Z = 4. Residual s are R = 0.034 and R(w) = 0.044 for 4092 observed data. The phosphine ligand is chelated via all three phosphorus atoms while tbe dithiocar bamate ligand is monodentate, through one sulfur atom, to give a disto rted square planar arrangement about the platinum atom. The short non- bonding distance (2.754(3) angstrom) between the platinum and other su lfur atom indicates there may be some interaction between these two at oms in the solid state.