MOLYBDENUM COMPLEXES WITH STERICALLY-HINDERED THIOLATE LIGANDS - THE SYNTHESIS AND STRUCTURE OF [MOO(NNMEPH)(2-SC5H3N-3-SIME3)2]

The oxo-hydrazido(2-) molybdenum(VI) complex [MoO(NNMePh)(2-SC5H3N-3-SiMe3)2] was prepared either by the reaction of [Mo2O3(2-SC5H3N-3-SiMe3)4] with 1,1-methylphenylhydrazine or by the reaction of [MoCl2(NNMePh)(2-SC5H3N-3-SiMe3)2] with atmospheric oxygen. The complex exhibits the cis oxo-hydrazido geometry, with the hydrazido (2-) ligand in the linear eta-1 coordination mode. Crystal data: C23H32N4OSi2S2MO, triclinic space group P1BAR, a = 11.640(2), b = 17.206(3), c = 7.930(2) angstrom, alpha = 102.92(1), beta = 99.46(1), gamma = 93.41(1)-degrees, V = 1519.3(9) angstrom-3, Z = 2, D(calc) = 1.30 g cm-1; structure solution and refinement based on 4746 reflections (Mo K-alpha, lambda = 0.71073 angstrom; I(o) greater-than-or-equal-to 3-sigma(I(o))) converged at a conventional discrepancy value of 0.043.