Abstract
AbstractThe title compound, [Et4N][(PPh3)2ClRuB12H12], was unexpectedly isolated from the reaction of RuCl2(PPh3)3 with closo‐B10H102− in ethanol as a red air‐stable solid, and characterized by IR and a single crystal X‐ray diffraction analysis. Its formation results from the reaction of RuCl2(PPh3)3 and B12H122−, which was present as a byproduct in the preparation of B10H102−. It may be formally regarded as either a ruthenium(II) complex of closo‐B12H122− via three B‐H‐Ru three‐center two‐electron bonds, or as a 13‐vertex pileo 2n‐electron (n is the number of vertices) ruthenaborane cluster with a capped closo polyhedral skelecton. This is the first anionic and structurally characterized metal complex having a {RuB12H12} moiety.
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