Partition of tris(acetylacetonato)chromium(III) and its temperature dependence in the systems of dodecane/(water-organic solvent mixture).
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概要
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The partition constants <I>K</I><SUB>t</SUB><SUP>\ominus</SUP> of tris(acetylacetonato)chromium(III) between dodecane and water–organic solvent mixtures have been measured. The organic solvents used as co-solvents were acetonitrile, <I>N</I>,<I>N</I>-dimethylformamide, methanol, ethylene glycol, and dimethyl sulfoxide which are all miscible with water but not with dodecane. From the temperature dependence of <I>K</I><SUB>t</SUB><SUP>\ominus</SUP> the thermodynamic parameters for the transfer of the complex from dodecane to the mixed solvents have been determined. The dependences of the partition constants on solvent composition of the aqueous phase have been interpreted in terms of changes in the internal pressure and the volume upon mixing of water with the organic co-solvents. The standard transfer enthalpies have been correlated with the excess enthalpies of the mixed solvents.
- 公益社団法人 日本化学会の論文
著者
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Awano Hiroshi
Department Of Materials Science And Engineering Faculty Of Engineering Yamagata University
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Watarai Hitoshi
Department Of Chemistry Faculty Of Science Osaka University
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Suzuki Nobuo
Department Of Applied Physics Faculty Of Engineering Tohoku University
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Awano Hiroshi
Department of Applied Chemistry, Faculty of Engineering, Osaka City University
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Awano Hiroshi
Department of Chemistry, Faculty of Science, Tohoku University
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