Synthesis and Crystal Structure of Binuclear Half-Sandwich Rhodium Carborane Complex

详细

Reaction of unsaturated 16e half-sandwich rhodium carborane complex [Cp*Rh(S₂C₂B₁₀H₁₀)] (Cp* = pentamethyl-cyclopentadienyl) with half equiv. (m-pyridyl)N=C(C₁₀H₆)C=N(m-pyridyl) (mPy-Bian, L) afforded a bi-nuclear complex [{Cp*Rh(S₂C₂B₁₀H₁₀)}₂(μ-L)] (I), leaving α-diimine moiety of the L ligand as free coordination site. Compounds L and I have been characterized by single crystal X-ray diffraction (CIF files nos. 1586584 (L) and 1586585 (I)). Compound L crystallizes in the monoclinic space group C2/c with a = 21.51(3), b = 8.884(13), c = 9.414(14) Å, β = 112.540(19)°, and Z = 4. Complex I crystallizes in the orthorhombic space group Pnma with a = 15.741(2), b = 34.062(5), c = 14.960(2) Å, and Z = 4.