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 |
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摘要: 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。 |
关键词: 钴(Ⅱ) 希夫碱 合成 配合物 氧合反应 热力学 |
基金项目: |
Abstract: Two new cobalt(Ⅱ) schiff base complexes were prepared in this paper,which are Co(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(VAEN).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 ΔH°and ΔS°were calculated from the above measurements.The effects of solvents and ligand structures on oxygenation were also discussed. |
Keywords: cobalt(Ⅱ) schiff base synthesis complex oxygenation thermodvnamics |
投稿时间:1993-09-12 |
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李晓燕,孙宏建,李淑兰,崔学桂,刘德信.两种CO(Ⅱ)希夫碱配合物的合成、表征和氧合反应热力学[J].无机化学学报,1994,10(3):311-316. |
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