Journal
COORDINATION CHEMISTRY REVIEWS
Volume 254, Issue 3-4, Pages 197-214Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ccr.2009.06.003
Keywords
Actinyl ions; Uranyl kinetics; Cation-cation interactions; Oxo substitution; Oxo functionalization
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Uranyl (UO22+) is an exceptionally stable molecular species, characterized by a linear O = U = O geometry and short U-O bonds. Its two oxo ligands are thought to be inert to exchange and resistant to functionalization. However, a growing body of literature suggests that this assessment may need to be reevaluated. This review summarizes the chemistry of the two oxo ligands of the uranyl ion. In particular, we explore the interaction of the uranyl oxo ligands with Lewis acids, and outline attempts to selectively functionalize the oxo ligands of uranyl by chemical means. We also discuss the kinetic and mechanistic knowledge for oxo ligand exchange under acidic, basic and photolytic conditions. (C) 2009 Elsevier B.V. All rights reserved.
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