Abstract

A relation between 95Mo NMR chemical shifts, semi-empirical CNDO estimated p and d orbital electron population and oxygen transfer capacity for a number of dioxomolybdenum(VI) complexes containing the unit [Mo VIO 2] is discussed. The way in which the oxo ligand electronic structure could influence on its oxygen transfer capacity, i.e. intermolecular or intramolecularly is analyzed. Compounds exhibiting negative chemical shift are associated with nucleophilic attack to the oxo ligand and intermolecular oxygen transfer, while those showing a positive chemical shift are associated with intramolecular oxygen transfer.

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