铜(Ⅱ)-1,4,8,11-四氮杂环十四烷-12,14-二酮-α-氨基酸(5-取代邻菲咯啉)三元配合物的稳定性

STABILITY OF COPPER (Ⅱ)5-SUBSTITUTED-1,10-PHENANTHROLINES/ α-AMINOACIDS-DIOXOTETRAAMINES MACROCYCLES TERNARY SYSTEMS

本文采用ｐＨ法，在２５．０±０．１℃，Ｉ＝０．１ｍｏｌ·ｄｍ－３ＫＮＯ３存在条件下，测定了铜（Ⅱ）－１，４，８，１１－四氮杂环十四烷－１２，１４－二酮－α－氨基酸（５－取代邻菲咯啉）三元配合物的稳定常数，探讨了大环多胺配体与金属离子的配位能力、配位方式、及其在水溶液中铜（Ⅱ）配合物的稳定性，同时也研究了５－取代邻菲咯啉与铜（Ⅱ）之间的ｄ－ｐ反馈π键，取代基的Ｈａｍｍｅｔ诱导效应对三元配合物稳定性的影响。

The stabilities of Cu(Ⅱ)1,4,8,11tetraazacyclotetradecane12,14dione(TADO14) binary complex compound and Cu(Ⅱ)5substituted penanthrolines (R′phen)/αaminoacidsTADO14 ternary complex compounds have been studied by means of pH titration method at 25.0±0.1℃ and I=0.1 mol·dm-3 KNO3. The formation constants of binary and ternary complexes were obtained. The structures of binary and ternary complex compounds and the effects of substituents on ligands R′phen were also discussed.