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

Seong Yun Kim, Toshihide Asakura, Yasuji Morita, Yasuhisa Ikeda

Research output: Contribution to journalConference articlepeer-review

10 Citations (Scopus)

Abstract

Electrochemical behaviours of UO2(β-diketonate) 2DMF, UO2(trop)2DMF and UO 2(sap)(DMF)2, (DMF, N,N-dimethylformamide; β-diketonate, thenoyltrifluoroacetonate(ttfa); benzoyltrifluoroacetonate(btfa) and dibenzoylmethanate(dbm); trop, tropolonate and sap, 2-salicylidenaminophenolate) complexes in DMF solution containing tetrabutylammonium perchlorate as a supporting electrolyte have been investigated by cyclic voltammetry. These uranyl(VI) complexes were found to be quasi-reversibly reduced to U(V) species. The formal redox potentials (E 0, versus ferrocene/ferrocenium) for U(VI)/U(V) couples were determined to be -1.176 V for UO2(ttfa)2DMF, -1.183 V for UO2(btfa)2DMF, -1.461 V for UO2(dbm) 2DMF, -1.456 V for UO2(trop)2DMF and -1.585 V for UO2(sap)(DMF)2 complex.

Original languageEnglish
Pages (from-to)1291-1295
Number of pages5
JournalJournal of Alloys and Compounds
Volume408-412
DOIs
Publication statusPublished - 2006 Feb 9
Externally publishedYes
EventProceedings of the Rare Earths'04 in Nara, Japan -
Duration: 2004 Nov 72004 Nov 12

Keywords

  • Cyclic voltammetry
  • Electrochemistry
  • Multidentate ligands
  • Redox reaction
  • Uranyl complexes

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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