Chemistry of methinyltricobalt enneacarbonyls. Part V. Tertiary phosphine and arsine derivatives
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 1457-1464
- https://doi.org/10.1039/j19710001457
Abstract
Mono-, di-, and tri-substituted tertiary phosphine and arsine derivatives of methinyltricobalt enneacarbonyls have been prepared. The co-ordination behaviour of the cluster is determined by the apical substituent Y, and the stereochemistry adopted is one which minimizes nonbonded carbonyl interactions. Thus the majority of mono-substituted complexes have the same structure as MeCCo3(CO)8Ph3P but other MeCCo3(CO)8L compounds adopt a carbonyl-bridged configuration. Di- and tri-substituted complexes also have a bridged structure. Different types of structural isomerism in solution have been identified.Keywords
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