SYNTHESIS, STRUCTURE, AND MECHANISM OF HALF-SANDWICH RUTHENIUM COMPLEX CONTAINING ORTHO-CARBORANE-1,2-DITHIOLATE LIGAND AND 1-PHENYL-2-PROPYN-1-OL

Abstract

A novel complex (p-cymene)Ru(S2C2B10H9)(PhCH=CCH2OCH(Ph)C≡CH)×CH2Cl2 based on the ortho-carborane-1,2-dithiolate ligand and 1-phenyl-2-propyn-1-ol has been synthesized successfully and characterized by IR, NMR, MS, elemental analysis and single-crystal X-ray diffraction. The complex crystallizes in monoclinic system, space group P21/n with：a = 10.221(4)Å，b = 14.912(6)Å，c = 24.182(10)Å，α = 90.00º，β = 99.096(6)°，γ = 90.00º, C31H40B10Cl2ORuS2, Mr = 772.82, V = 3639(3) Å3, Dc = 1.410 g/cm3, Z = 4, F(000) = 1576, µ(MoKα) = 0.719mm-1, R = 0.0600 and ωR = 0.1561 for 5463 observed reflections (I >2σ(I)). Structural analysis shows that there are the coordination of C=C bond, the formation of C–S bond, and metal-induced B–H activation with the formation of Ru–B bond.