Abstract

In an attempt to understand dissociative chemisorption on transition-metal clusters, the potential of water-{sup 18}O was investigated as a probe of metal cluster oxide character since oxygen exchange with water has been observed on metal oxide surfaces. Observations of facile oxygen exchange suggested that water-{sup 18}O may be employed as a sensitive probe for oxide character in transition-metal clusters in complexes. This technique should prove to be a powerful and nondestructive method for probing the structure of complex transition-metal cluster ions in the gas phase. 30 refs.

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