两种CO（Ⅱ）希夫碱配合物的合成、表征和氧合反应热力学

SYNTHESIS,CHARACTERIZATION AND OXYGENATION THERMODYNAMICS OF TWO COBALT(Ⅱ) SCHIFF BASE COMPLEXES

本文合成了两种新的Ｃｏ（Ⅱ）希夫碱配合物，双（２，４－二羟基苯乙酮）乙二胺合钴（Ⅱ）（Ｃｏ（ＣＯＥＮ））和双（对香兰素）乙二胺－乙氧基－醋酸钴（Ⅱ）（Ｃｏ（ＶＡＥＮ））．通过元素分析、红外光谱、摩尔电导、热分析等测试手段研究了配合物的性质．并确定了配合物的组成．用气体吸收测量装置测得配合物分别在ＤＭＦ、ｐｙ等不同溶剂中于不同温度下的饱和吸氧量，求得氧合反应的平衡常数及热力学参数．同时讨论了溶剂和配体结构对配合物氧合性能的影响．

Two new cobalt(Ⅱ) schiff base complexes were prepared in this paper,which areCo(L1)(OC2H5)(OOCCH3)(L1=his(p-vanillin) ethylene diiminato),simplification: Co(VAEN)and Co(L2)0.5CH,COOH (L2=bis (2,4-dihydroxy acctophcnone) ethylene diiminato),simplification:Co(COEN).They were characterized by elemental analyses,IR spcctra,molar conductivity and thermal analyses.The compositions of the complexes were also determined.Saturated oxygen uptake of the complexes in py and DMF solvents at different tomperatures wereobtained by manomctric oxygen-uptake measurements.Oxygenation equilibrium constnts andits thermodynamic parameters H°and S°were calculated from the above measurements.The effects of solvents and ligand structures on oxygenation were also discussed