摘要
用量热滴定法以甲醇—水混和溶剂为体系（φ甲醇＝０．８６），测定了羟基乙酸稀土［Ｌａ（Ⅲ），Ｃｅ（Ⅲ）］与２，２′－联吡啶在２５℃时配位作用．计算了配合物的稳定常数和配位反应热焓．讨论了三元配合物的热力学性质随稀土原子序数的变化规律，并在文献［１］的基础上。
The coordinate rules of the rare earth with hydroxyacetic acid and 2,2′ dipyridine were studied by means of calorimetric titration in the mixed solvent of methyl alcohol with water(method φ =0 86) at 25 ℃. The stability constant and heat function of the co ordination compound were calculated and the rules that thermodynamic properties vary with atomic number were discussed. Based on literature, the coordinate reaction of the rare earth with hydroxyacetic acid and different ligands containing nitrogen were compared.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
1996年第3期82-86,共5页
Journal of Lanzhou University(Natural Sciences)
基金
甘肃省自然科学基金
关键词
羟基乙酸
联吡啶
稀土元素
配合物
量热
hydroxyacetic acid 2,2′ dipyridine rare earth ternary complexes calorimetric studies
