Transformation of organic substrates on metal cluster complexes

Kaesz, H. D.; Knobler, Carolyn B.; Andrews, M. A.; Buskirk, Gregory Van; Szostak, Roman; Strouse, Charles E.; Lin, Ying-Chan; Mayr, and Andreas

doi:10.1351/pac198254010131

Cited by 19 publications

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“…Many systems, stoichiometric as well as catalytic, have been delineated in which mononuclear metal complexes act as the site of ligand transformation − As ligand dissociation from saturated clusters is often competitive with cluster degradation, the importance of electronically unsaturated clusters in facilitating the first step in the process is well recognized. , However, only a few unsaturated clusters are known, with the net result that our understanding of ligand transformations on clusters is much less developed than that of mononuclear complexes.…”

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confidence: 99%

Reactions of an Electronically Unsaturated Chromaborane. Coordination of CS₂ to (η⁵-C₅Me₅)₂Cr₂B₄H₈ and Its Hydroboration to a Methanedithiolato Ligand

1996

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The reaction of the electronically unsaturated Cp*2Cr2B4H8 (1; Cp* = η5-C5Me5) cluster with CS2 yields the saturated Cp*2Cr2(CH2S2B4H6) (3) cluster in better than 90% isolated yield. Both solution spectroscopic and solid-state crystallographic data show that 3, with C 2 point symmetry, contains an intracluster bridging methanedithiolato H2CS2 ligand in which the S atoms of the ligand have replaced two transoid BHCr bridging hydrogens in 1, which in turn have added to the carbon atom. The three compounds 1, Cp*2Cr2(CO)2B4H6 (2), and 3 exhibit similar cluster geometries but possess 42, 44, and 46 cluster valence electrons, respectively.

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confidence: 99%