Structure and redox properties of a novel decavanadium cluster [(V=O)102-O)93-O)3(C5 H7O2)6] in dichloromethane

K. Oyaizu, E. L. Dewi, E. Tsuchida*

*この研究の対応する著者

研究成果: Article査読

18 被引用数 (Scopus)

抄録

A novel decavanadium cluster [(V=O)102-O)93-O)3(C5H7 O2)6] bearing ten oxovanadium(V) centers linked with bridging oxygen atoms was prepared. In contrast to the well known decavanadate ion V10O28/6-, the molecule was soluble in organic solvents such as dichloromethane and 1,1,2,2-tetrachloroethane due to the peripheral acetylacetone ligands. X-ray crystallographic analysis revealed a molecular framework formed by nine square-pyramidal VO5 polyhedra surrounding one VO4 tetrahedron linked through the corners. The molecule consists of approximate three-fold rotational symmetry, allowing the classification of ten vanadium atoms into four chemically equivalent categories. The unique metal core geometry persists in solution, which was demonstrated by the four peaks in the 51V-NMR spectrum. However, the four types of vanadium atom could not be distinguished by electrochemical measurements; consequently, the molecule was a multielectron reservoir which showed a broad cathodic wave near 0.6 V vs. Ag | AgCl due to the reduction of the vanadium(V) centers to vanadium(IV).

本文言語English
ページ(範囲)136-141
ページ数6
ジャーナルJournal of Electroanalytical Chemistry
498
1-2
DOI
出版ステータスPublished - 2001 2 16

ASJC Scopus subject areas

  • 分析化学
  • 化学工学(全般)
  • 電気化学

フィンガープリント

「Structure and redox properties of a novel decavanadium cluster [(V=O)<sub>10</sub>(μ<sub>2</sub>-O)<sub>9</sub> (μ<sub>3</sub>-O)<sub>3</sub>(C<sub>5</sub> H<sub>7</sub>O<sub>2</sub>)<sub>6</sub>] in dichloromethane」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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