Reaction of [Co3(CO)9CCl] with [Ni6(CO)12]2– results in a complicated mixture of mixed Co–Ni carbide carbonyl clusters, among which the [Co3Ni9C(CO)20]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 °C, 1 atm) mainly to a mixture of [Co(CO)4]– and [Ni(CO)4]. 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.
Mixed Co-Ni carbide clusters. Part 1. Synthesis and structural characterization of the [Co3Ni9C(CO)20]3- trianion / A. Ceriotti, R. Della Pergola, G. Longoni, M. Manassero, M. Sansoni. - In: JOURNAL OF THE CHEMICAL SOCIETY DALTON TRANSACTIONS. - ISSN 0300-9246. - :6(1984), pp. 1181-1186.
|Titolo:||Mixed Co-Ni carbide clusters. Part 1. Synthesis and structural characterization of the [Co3Ni9C(CO)20]3- trianion|
CERIOTTI, ALESSANDRO UBERTO (Primo)
|Settore Scientifico Disciplinare:||Settore CHIM/03 - Chimica Generale e Inorganica|
|Data di pubblicazione:||1984|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1039/DT9840001181|
|Appare nelle tipologie:||01 - Articolo su periodico|