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Issue 1, 2000
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Copper(I) and silver(I) carbonyls. To be or not to be nonclassical

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Abstract

The traditional, or classical, picture of M–CO bonding is not a good model for more than 200 metal carbonyl species with average ν(CO) values greater than 2143 cm−1. These “nonclassical” complexes, exemplified in this Perspective by the cations Cu(CO)n+ and Ag(CO)n+ (n = 1–4), possess M–CO interactions that are best described as M←CO σ bonds having a significant electrostatic component. There is relatively little M→CO π backbonding. However, despite the similarity in ν(CO) values, homologous Cu(CO)n+ and Ag(CO)n+ complexes behave differently when subjected to perturbations such as stretching the metal–carbon bonds or adding a pair of weak ligands to the metal center.

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Publication details

The article was received on 24 Mar 1999, accepted on 25 Oct 1999 and first published on 14 Jan 2000


Article type: Perspective
DOI: 10.1039/A908459B
Citation: J. Chem. Soc., Dalton Trans., 2000,0, 1-6
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    Copper(I) and silver(I) carbonyls. To be or not to be nonclassical

    S. H. Strauss, J. Chem. Soc., Dalton Trans., 2000, 0, 1
    DOI: 10.1039/A908459B

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