K. Wurst et J. Strahle, ON THE REACTION OF (COD)PTCL2 WITH 1,4-BIS-[DI(T-BUTYL)PHOSPHINO]BUTANE (DTBPB) - CRYSTAL-STRUCTURE OF [(T-BU)2P(CH2)4P(T-BU)2-(C8H12)-PTCL]-(CL), Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 48(4), 1993, pp. 425-430
Whereas (COD)PtCl2 usually reacts with bidentate phosphine ligands und
er substitution of the COD ligand, the reaction with the newly synthes
ized 1,4-bis-[di(t-butylphosphino)] butane results in the insertion of
COD into one Pt-P bond affording [(t-Bu)2P(CH2)4 P(t-Bu)2-(C8H12)-PtC
l]+Cl- (1). 1 crystallizes in the monoclinic space group C2/c with a =
3912.8(8), b = 1765.6(3), c = 3851.3(4) pm, beta = 118.36(2)degrees,
Z = 24. In the cation of 1 the second C=C bond remains coordinated to
the central Pt2+ ion. The square-planar coordination of Pt2+ ion is co
mpleted by a Cl ligand and the second P atom of the phosphine ligand.
The inserted C-C bond is elongated to 149(5) pm with respect to the co
ordinating C=C bond of 133(6) pm.