High pressure NMR studies on ligand exchange reactions in the equatorial sites of [VO(L)5]2+ (L=acetonitrile, N,N-dimethylformamide, and N,N-dimethylacetamide)

Jung Sung Kim, Takaaki Matsuda, Masayuki Harada, Seong Yun Kim, Yoon Yul Park, Hiroshi Tomiyasu, Yasuhisa Ikeda

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Kinetics of ligand exchange reactions in the equatorial sites of [VO(L)5]2+ [L=acetonitrile, N,N-dimethylformamide (DMF), and N,N-dimethylacetamide (DMA)] have been studied by using high pressure NMR method. The values of activation volume (ΔV, cm3 mol-1) are -1.0±0.6 for [VO(CH3CN)5]2+, -6.8±0.4 for [VO(DMF)5]2+, and -9.7±0.9 for [VO(DMA)5]2+. On the basis of the ΔV values obtained in the present and previous studies, the mechanism for the ligand exchange reactions in the equatorial sites of [VO(L)5]2+ (L=unidentate oxygen or nitrogen donor ligands) was discussed.

Original languageEnglish
Pages (from-to)119-122
Number of pages4
JournalInorganica Chimica Acta
Volume294
Issue number1
DOIs
Publication statusPublished - 1999 Nov 2
Externally publishedYes

Keywords

  • Activation volume
  • High pressure NMR
  • Oxovanadium ions

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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