Stereoselective isomerization and racemization of (N-methyliminodiacetato)(ethylenediamine-N-acetato)cobalt(III), (Co(mida)(edma)), in a basic aqueous solution.
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概要
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Isomerization reactions of four geometrical isomers (pink, violet, brown, and light-brown) of [Co(mida)(edma)] were studied in a basic aqueous solution. In a reaction of the (−)<SUB>565</SUB><SUP>CD</SUP>-pink isomer, two isomers of (−)<SUB>561</SUB><SUP>CD</SUP>-brown and racemic light-brown formed simultaneously. The light-brown isomer isomerized mainly to the brown isomer. In reactions of the (+)<SUB>572</SUB><SUP>CD</SUP>-violet and (+)<SUB>561</SUB><SUP>CD</SUP>-brown isomers, the formations of other isomers were not observed but the racemizations occurred. The racemization reaction of the (+)<SUB>572</SUB><SUP>CD</SUP>-violet isomer proceeded at a considerable rate. These reactions are discussed in connection with those for the [Co(ida)(edma)] system.
- 公益社団法人 日本化学会の論文
著者
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Tsuji Kenji
Department Of Applied Chemistry School Of Science And Engineering Waseda University
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Yasui Takaji
Department Of Chemistry Faculty Of Science Kochi University
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Ama Tomoharu
Department Of Chemistry Faculty Of Science Kochi University
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Kawaguchi Hiroshi
Department Of Applied Chemistry Faculty Of Engineering Utsunomiya University
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Tsuji Kenji
Department of Chemistry, Faculty of Science, Kochi University
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