THE COORDINATION CHEMISTRY OF 1,2-BIS[(DIPHENYLPHOSPHINO)METHYL]BENZENE WITH NICKEL(II), PALLADIUM(II), PLATINUM(II), AND PLATINUM(0) AND THE X-RAY CRYSTALS STRUCTURE OF [PT(1,2-BIS[(DIPHENYLPHOSPINO)METHYL]BENZENE)(C2H4)]

The preparation of complexes [MX2(1)] (M = Ni, Pd, and Pi; X ‐ Cl, Br, and I; 1 = 1,2‐bis[(diphenylphosphino)methyl]benzene). [Pt(OSO2CH3)Et(1)], [Pt(alkene)(1)] (alkene ‐ C2H2, and CH2 = CHCN), and [(1)Pt‐(μ‐H)2PtH(1)][BPh4] is reported. Their 1H‐ and 31P‐NMR spectra were recorded and used lor structural assignments. The X‐ray crystal structure of [Pt(C2H4)(1)] was determined. It is shown that the PPtP bond angle in this complex differs significantly from those found in related compounds with monodentate phosphines, and that this difference is likely to be due to intramolecular contacts. Copyright © 1990 Verlag GmbH & Co. KGaA, Weinheim