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Synthesis and Characterization of a Novel Cobalt Carbonyl N-Heterocyclic Carbene Salt. Crystal Structure of [Co(CO)3(IMes)2]+[Co(CO)4]-

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posted on 2007-03-19, 00:00 authored by Hendrik van Rensburg, Robert P. Tooze, Douglas F. Foster, Stefanus Otto
The disproportionation of dicobalt octacarbonyl induced by the free carbene 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene (IMes) and the X-ray characterization of the cyclohexane solvate of the resulting cobalt carbonyl N-heterocyclic carbene salt, [Co(CO)3(IMes)2]+[Co(CO)4] -·1/4C6H12, is reported. The crystal structure represents the first example of a [Co(CO)3(L)2][Co(CO)4] disproportionate salt reported to date.

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