Mixed Co-Ni Carbide Clusters. Part 1. Synthesis and Structural Characterization of the 3- Trianion

DOI: 10.1039/DT9840001181

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 1181 - 1186 (1984)

Update date:2022-08-22

Topics:

Authors:

Ceriotti, Alessandro

Pergola, Roberto Della

Longoni, Giuliano

Manassero, Mario

Sansoni, Mirella

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Article abstract of DOI:10.1039/DT9840001181

Reaction of with ^2- results in a complicated mixture of mixed Co-Ni carbide carbonyl clusters, among which the ^3- trianion has been isolated in a pure crystalline state and fully characterized by X-ray crystallography.The metal framework of this compound is unprecedented in cluster geometries and may be described as a square antiprism of metal atoms tetra-capped on two alternate pairs of adjacent triangular faces.Despite the presence of a caged carbon atom in the square-antiprismatic cavity, the compound is readily degraded by carbon monoxide (25 deg C, 1 atm) mainly to a mixture of ^- and .Corresponding degradation of the cluster under a mixture of carbon monoxide and hydrogen yields, in addition, trace amounts of organics, mainly C1 and C2 hydrocarbons, probably derived from the carbide atom.