ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 31, Number 6
JKCSEZ 31(6)
December 20, 1987 

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.