Electrochemical properties of uranium(VI) complexes with multidentate ligands in -dimethylformamide

Kim, S.-Y.; Asakura, Toshihide; Morita, Yasuji ; Ikeda, Yasuhisa*

The electrochemical reactions of UO $_{2}$ (-diketonato) $_{2}$ DMF, UO $_{2}$ (trop) $_{2}$ DMF and UO $_{2}$ (sap)(DMF) $_{2}$ , (DMF = N,N-dimethylformamide, -diketonate = thenoyltrifluoroacetonate (ttfa), benzoyltrifluoroacetonate (btfa), and dibenzoylmethanate(dbm), trop = tropolonate, and sap = 2-salicylidenaminophenolate) complexes in DMF solution containing tetrabutyl ammonium perchlorate as a supporting electrolyte have been studied with cyclic voltammetry. These uranyl(VI) complexes were found to be quasi-reversibly reduced to U(V) species. The formal redox potentials (E $^{o}$ , . ferrocene/ferrocenium) for U(VI)/U(V) couples were determined to be -1.18 V for UO $_{2}$ (ttfa) $_{2}$ DMF, -1.18 V for UO $_{2}$ (btfa) $_{2}$ DMF, -1.46 V for UO $_{2}$ (dbm) $_{2}$ DMF, -1.46 V for UO $_{2}$ (trop) $_{2}$ DMF, and -1.59 V for UO $_{2}$ (sap)(DMF) $_{2}$ .

Language	:	English
Journal	:	Journal of Alloys and Compounds
Volume	:	408-412
Number	:
Pages	:	p.1291 - 1295
Publication Year/Month	:	2006/02
Meeting title	:	Rare Earths '04
Held date	:	2004/11
Location (city)	:	Nara
Location (country)	:	Japan
Patent information	:
PDF	:
Paper URL	:	https://doi.org/10.1016/j.jallcom.2005.04.123
DOI for research data	:
Keywords	:	Uranyl Complexes; Electrochemistry; Cyclic Voltammetry; Redox Reaction; Multidentate Ligands
Research Facility	:
Press Release	:
Article of JAEA R&D Review	:
Cooperating Institute	:	文部科学省

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Registration No. : B20040231
JAEA Abstracts No. : 34000293
Paper Submission No. : 408

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