Abstract
The cluster Cp' 2 Mo 2 Co 2 S 3 (CO) 4 (1) (Cp'=C 5 H 4 Me) abstracts the phosphinidene group R-P at 80 o C from phenylphosphine to form the cubane-like cluster Cp' 2 Mo 2 Co 2 S 3 (CO) 2 (μ 3 -PPh) (4). This is analogous to the desulfurization of thiols and thiophene by 1. Further reaction with the phosphine leads to the phosphine-substituted cubane Cp' 2 Mo 2 Co 2 (CO)(PH 2 Ph)S 3 -(μ 3 -PPh) (5). Reactions of 1 with diphenylphosphine are faster and form the monophosphine adduct as well as the cis and trans diadducts
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