SYNTHESIS AND MOLECULAR-STRUCTURE OF CIS-1-[(C6H5CH2)3PPTP(CHC6H5)(CH2C6H5)2]-2-CH3-1,2-(SIGMA-B10C2H10)

The title complex has been prepared from the reaction of cis-[(C6H5CH2)3P]2PtCl2 with 1-Li-2-Ch3-1,2-B10C2H10 and the crystal structure determined by X-ray single-crystal analysis. Crystals are triclinic, space group P1, with a 13.826(5), b 15.269(5), c 13.234(4) » and α 104.74(8), β 60.78(8), γ 107.46(8)°. The structure was solved by the heavy-atom method and refined to R 0.060 for 3855 independent reflections. The carboranyl group is σ-bonded to Pt through it C(1) atom. One phosphine is coordinated to the metal atom through its P atom, the other through its P atom and the C atom bonded to phosphorus of one benzyl side group, leading to a three-membrane PtPC chelate ring. © 1979.