Electron paramagnetic resonance study of the dimer formation of bis(acetylacetonato)oxovanadium(IV).
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概要
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Dimer formation of the title complex in toluene and benzene mixed solvents has been demonstrated by the EPR spectroscopy. The dimer structure and the spin-exchange energy have been examined by spectral simulation for <I>ΔM</I><SUB>s</SUB>=2 transitions and the temperature dependence of their spectral intensities, respectively. It has been found that the structure and the magnetism are similar to those of the inversion pair of bis(benzoylacetonato)oxovanadium(IV) in a crystal which is known to show dimeric interactions in its EPR spectra. The formation constant of the dimer, <I>K</I>, for 2 [monomer] \rightleftharpoons dimer has been determined by analyzing the concentration dependence of the dimer and the monomer EPR signals, indicating that <I>K</I> is remarkably solvent-dependent.
- 公益社団法人 日本化学会の論文
著者
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Yokoi Hiroshi
Department Of Applied Chemistry Faculty Of Engineering Shizuoka University
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Iwaizumi Masamoto
Chemical Research Institute of Non-Aqueous Solutions, Tohoku University
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Kawata Satoshi
Chemical Research Institute of Non-Aqueous Solutions, Tohoku University
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