A Cycloboronated Nickelaundecaborane: [(PhCOS)₂NiB₁₀H₈(PPh₃)]

The title compound 7,8:7,11-di(μ-thiobenzoato-S:O)-10-(triphenylphosphine-P)-8:9-μH– 7-nickela-nido-undecaborane, C₃₂H₃₃B₁₀NiO₂PS₂, has been synthesized and characterized by X-ray diffraction analysis. The cluster is a nido eleven-vertex {NiB₁₀} cage with the Ni atom in the open NiB₄ face. Cyclizations resulting in two five-membered rings, Ni7—S1—C1—O1—B8 and Ni7—S2—C2—O2—B11, have occurred.

-1