非对称N-(亚水杨基)二亚乙基三胺铜(Ⅱ)配合物的合成、结构分析和催化活性评价(英文)  

Synthesis, structural analysis and evaluation of the catalytic activity of a non-symmetric N-(salicylidene) diethylenetriamine complex of copper(Ⅱ)

作　　者：Hassan HOSSEINI-MONFARED Sohaila ALAVI Milosz SICZEK 

机构地区：[1]Department of Chemistry,University of Zanjan [2]Faculty of Chemistry,University of Wroclaw

出　　处：《催化学报》2013年第7期1456-1461,共6页

基　　金：the University of Zanjan for providing financial support for this study

摘　　要：A new copper(Ⅱ) complex of a non‐symmetric Schiff base, [CuII(saldien)(H2O)]+(1), has been synthesized and characterized by elemental analysis and several other spectroscopic methods (Hsaldien = N‐(salicylidene)diethylenetriamine). The crystal structure of 1 has also been determined by X‐ray crystallography. The geometry of the complex cation in 1 was found to be distorted square pyramidal with the mononegative Schiff base coordinating to the copper in a tetradentate mode via the O,N,N', and N''‐donor atoms. The remaining coordination site was occupied by the O atom of a H2O molecule in the axial position. The catalytic potential of 1 was tested in the oxidation reactions of cyclooctene and cyclohexene with aqueous 30% H2O2/NaHCO3 in acetonitrile. These reactions proceeded smoothly to give the corresponding epoxides with selectivity levels greater than 99%. This catalytic system also showed high levels of activity and selectivity towards the oxidation of cyclohexane (i.e., cyclohexanol 37% and cyclohexanone 54%) in comparison with most of the other Cu‐based systems reported in the literature.A new copper（Ⅱ） complex of a non‐symmetric Schiff base, [CuII（saldien）（H2O）]＋（1）, has been synthesized and characterized by elemental analysis and several other spectroscopic methods （Hsaldien = N‐（salicylidene）diethylenetriamine）. The crystal structure of 1 has also been determined by X‐ray crystallography. The geometry of the complex cation in 1 was found to be distorted square pyramidal with the mononegative Schiff base coordinating to the copper in a tetradentate mode via the O,N,N＇, and N＇＇‐donor atoms. The remaining coordination site was occupied by the O atom of a H2O molecule in the axial position. The catalytic potential of 1 was tested in the oxidation reactions of cyclooctene and cyclohexene with aqueous 30% H2O2/NaHCO3 in acetonitrile. These reactions proceeded smoothly to give the corresponding epoxides with selectivity levels greater than 99%. This catalytic system also showed high levels of activity and selectivity towards the oxidation of cyclohexane （i.e., cyclohexanol 37% and cyclohexanone 54%） in comparison with most of the other Cu‐based systems reported in the literature.

关 键 词：三胺配合物 催化活性 亚水杨基 非对称 结构分析 合成 SCHIFF碱 亚乙基 

分 类 号：O643.36[理学—物理化学]