First Observation of [Pu(OH)O] Cluster During the Hydrolytic Formation of PuO Nanoparticles Using H/D Kinetic Isotope Effect
Overview
Overview
Journal
Chem Commun (Camb)
Publisher
Royal Society of Chemistry
Specialty
Chemistry
Date
2022 Nov 9
PMID
36349890
Authors
Authors
Affiliations
Affiliations
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Abstract
New insights are provided about the formation mechanism of PuO nanoparticles (NPs) by investigating an unprecedented kinetic isotope effect observed during their hydrolytic synthesis in HO or DO and attributed to OH/OD zero point energy difference. The signature of a Pu(IV) oxo-hydroxo hexanuclear cluster, appearing as an important intermediate during the formation of the 2 nm PuO NPs (synchrotron SAXS/XAS), is further revealed indicating that their formation is controlled by H-transfer reactions occurring during hydroxo to oxo-bridge conversions.