钴（Ⅱ）－5－取代邻菲咯啉－α－氨基酸形成三元配合物的动力学研究

Kinetic Study on the Formation of Ternary Complexes of Co(Ⅱ) ─5─ Substituted Phenanthrolines and α──Aminoacids

本文采用温度跃迁方法研究了钴（Ⅱ）－５－取代邻菲咯啉－α－氨基酸形成三元配合物的动力学性质，结果表明反应速率常数与－５－取代邻菲咯啉取代基Ｈａｍ－ｍｅｔｔ常数之间存在线性关系，并讨论了Ｈａｍｍｅｔｔ常数的大小对速率常数的影响。

Kinetis on the formation of the ternary complexes Co (Ⅱ) 5 Substituted phenanthrolinesa and α-aminoacids was studied by temperature-jump technique and their formation rate constants were determined at 25.0±0.1℃,I=0.1 mol·dm-3 KNO3. The results show that linear exist between the formation rate constants of the ternary complexes and the Hammett constants of 5-substituted phenanthrolines. The dependence relationships of the rate constants of rate-determining step with the Hammett constants were discussed.