Molybdenum complexes with sterically-hindered thiolate ligands. The synthesis and stmcture of [MoO(NNMePh)(2-SC 5H 3N-3-SiMe 3) 2

Abstract

The oxo-hydrazido (2−) molybdenum(VI) complex [MoO(NNMePh)(2-SC 3H 3N-3-SiMe 3) 2] was prepared either by the reaction of [Mo 2O 3(2-SC 3H 3N-3-SiMe 3) 4] with 1,1-methylphenylhydrazine or by the reaction of [MoCl 2(NNMePh)(2-SC 5H 3N-3-SiMe 3)e] with atmospheric oxygen. The complex exhibits the cis oxo-hydrazido geometry, with the hydrazido (2−) ligand in the linear η 1/x coordination mode. Ctystal data: C 23H 32NnOSi 2S 2Mo, triclinic space group P 1 , a=11.640(2), b=17.206(3), c=7.930(2) \\ ̄ rA, αa= 102.92(1), β= 99.46(1), γ=93.41(1)°, V= 1519.3(9) Å 3, Z= 2, D cale= 1.30 g cm −1; structure solution and refinement based on 4746 refiections (Mo Kα, λ = 0.71073 Å; I o ≥ 3 σ ( I o)) converged at a conventional discrepancy value of 0.043.