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KMID : 1059519870310060534
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Journal of the Korean Chemical Society
1987 Volume.31 No. 6 p.534 ~ p.541
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The Substitution Mechanism of [CoCl(Hedta)]- ion by Ethylenediamine in the Presence of Hg2+ ion
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Lee Sang-Mock
Lee Dong-Jin
Doh Myung-Ki
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Abstract
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The study of reaction mechanism for the substitution of ethylenediamine (en) for Cl and Hedta from [CoCl(Hedta)]- in the presence of Hg2+ ion was carried out by uv and CD spectra. From the kinetic data, we proposed that the first ethylenediamine be substituted through the associative reaction path by means of interaction of Hg2+ ion with Co(Ⅲ), and that the second and the third ethylenediamine be substituted stepwise. From the optical purities of [Co(en)3]3+ which was formed after reaction, we suggested the critical stereochemical step and new substitution reaction paths.
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KEYWORD
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