Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
A Study on Spontaneous Resolution of Cobalt(III) Complex Salts
Kazuaki YamanariJinsai HidakaYoichi Shimura
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1973 Volume 46 Issue 12 Pages 3724-3728

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Abstract

Solubility of the racemic and optically active isomers of [Co(ox)en2]X, [CoCO3en2]X, cis-[Co(NO2)2en2]X and M[Co(edta)] in water was determined at 5–60 °C (X=Cl, Br, and I; M=NH4 and K). The correlation between solubility of the spontaneously resolved racemic complex and of the corresponding optically active isomer is discussed. Spontaneous resolutions were observed for [Co(ox)en2]X (X=Cl, Cl·H2O, and Br·H2O), cis-[Co(NO2)2-en2]X (X=Cl and Br) and M[Co(edta)]·2H2O (M=NH4 and K).

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