Synthesis and reaction chemistry of a new class of. mu.-alkylidene dicobalt complexes. Crystal and molecular structure of (. mu.-methylene) bis [. eta. 5-( …

KH Theopold, RG Bergman

Index: Theopold, Klaus H.; Bergman, Robert G. Journal of the American Chemical Society, 1983 , vol. 105, # 3 p. 464 - 475

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Abstract

Abstract: Treatment of Na [CpCo (CO)], with gem-diiodoalkanes (RR'CI,, R= H, alkyl) leads to a class of dinuclear p-alkylidene complexes containing two adjacent cobalt atoms. Cis and trans isomers were observed in certain of these materials, as well as bridging and terminal carbonyls, depending upon the substituents located at the alkylidene carbon. Complexes having two alkyl substituents attached to this carbon lose one CO ligand, leading to stable ...