Electrochemical properties of bis(dicarbollide)uranium dibromide

Journal Article · Mon Jul 27 04:00:00 EDT 1998 · Inorganic Chemistry

DOI:https://doi.org/10.1021/ic9712838· OSTI ID:653421

Rege, F.M. de; Smith, W H; Scott, B L; Nielsen, J B; Abney, K D ^[1]

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1. Los Alamos National Lab., NM (United States). Chemical Science and Technology Div.

The cyclic voltammogram of [({eta}{sup 5}-C{sub 2}B{sub 9}H{sub 11}){sub 2}UBr{sub 2}] {center_dot} 2[Li(THF{sub 4})] shows the electrochemical generation of a uranium(III) species. Subsequent Na/Hg reduction of [({eta}{sup 5}-C{sub 2}B{sub 9}H{sub 11}){sub 2}UBr{sub 2}] {center_dot} 2[Li(THF{sub 4})] leads to the new isolable uranium(III) species [({eta}{sup 5}-C{sub 2}B{sub 9}H{sub 11}){sub 2}UBr(THF)] {center_dot} 2[Li(THF){sub x}] (x = 2--4). The green uranium(III) complex was characterized by NMR and elemental analysis and its structure determined by single-crystal X-ray crystallography. The coordination geometry around the dinegative uranium(III) moiety is pseudotetrahedral with two dicarbollide ligands, a bromide ligand, and a THF ligand. The electrochemical properties of the dicarbollide complex are discussed and compared to similar cyclopentadienyluranium complexes.

• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 653421
• Journal Information: Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: 15 Vol. 37; ISSN 0020-1669; ISSN INOCAJ
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
40 CHEMISTRY
CHEMICAL PREPARATION
CRYSTAL STRUCTURE
ELECTROCHEMISTRY
REDUCTION
URANIUM BROMIDES