Abstract
This work concerned the oxo exchange of americyl(VI) ([AmO2]2+) in alkaline solution by means of B3LYP calculations. Four possible reaction pathways were investigated and compared, which covered the direct intramolecular proton transfer pathway (Path 1 and 2), the pathway via a T-shape [AmO3](aq) intermediate (Path 3), and the binuclear pathway (Path 4). The Path 3 was predicted as the most probable pathway in view of the energetics, the activation energy (∆G≠) to which was calculated to be 55.7 kJ/mol. The evolution of the Mayer bond order of key bonds were analyzed to assist the understanding of the mechanism.
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