Solubility diagrams of cobalt(III) complexes containing amino acid. I. Spontaneous resolution of tetraammine-(valinato or leucinato)cobalt(III) salts.

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概要

• 論文の詳細を見る

• The binary and ternary solubility phase diagrams of the racemic and optically active complexes, [Co(val)(NH<SUB>3</SUB>)<SUB>4</SUB>]X<SUB>2</SUB> and [Co(leu)(NH<SUB>3</SUB>)<SUB>4</SUB>]X<SUB>2</SUB> (X=(1/2)SO<SUB>4</SUB><SUP>2−</SUP>, Cl<SUP>−</SUP>, Br<SUP>−</SUP>, and I<SUP>−</SUP>), were determined in water. Spontaneous resolution was found for [Co(DL-val)(NH<SUB>3</SUB>)<SUB>4</SUB>]X<SUB>2</SUB> (X=Cl<SUP>−</SUP> and Br<SUP>−</SUP>) at 5–55 °C and for [Co(DL-leu)(NH<SUB>3</SUB>)<SUB>4</SUB>]SO<SUB>4</SUB> at 30–55 °C, the latter of which has been shown to crystallize as both a racemic compound (below 30 °C) and a conglomerate (above 30 °C).

• 公益社団法人 日本化学会の論文

著者

• Yamanari Kazuaki

  Department Of Chemisry Faculty Of Science Osaka University

• Shimura Yoichi

  Department of Chemistry Faculty of Science Osaka University

• Naito Shigeru

  Department of Chemistry, Faculty of Science, Osaka University

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