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2-乙基己基膦酸单2-乙基己酯铜(Ⅱ)萃合物的ESR谱和电子结构
ESR SPECTRA AND ELECTRONIC STRUCTURE OF COPPER(Ⅱ)COMPLEX WITH 2-ETHYLHEXYL PHOSPHONIC ACID MONO(2-ETHYLHEXYL)ESTER
【摘要】 <正> 有机酸性膦(磷)酸酯与二价铜离子的萃合物研究已有报导。文献[1]对该萃合物的结构做了初步讨论,认为由于在正庚烷溶剂中铜萃合物的吸收光谱呈一宽的吸收带,最大吸收峰位置在13600cm-1处,难以推断该萃合物是四面体还是平面正方形结构。本文在291和77K下测定了萃合物的ESR谱,并用量子化学的CNDO/2方法对该萃合物的电子结构作了进一步研究。
【Abstract】 ESR spectra of the copper(Ⅱ) complex with 2 -ethylhexyl phosphonic acid mono (2 -ethylhexyl) ester have been recorded at 291K and 77K respectively. The possible structureshave been proposed based on the results obtained by CNDO/2 method. The metal ion iscoordinated with oxygen atoms of ligand to form a square-planar structure and the comp-lex is arranged into a layered structure of elongated octahedra. Cu--O bond in the complexshows both ionic and covalency property.
【关键词】 ESR;
2-乙基己基膦酸单2-乙基己基酯;
Cu(Ⅱ)离子;
萃合物;
【Key words】 ESR; 2-ethylhexyl phosphonic acid mono(2-ethylhexyl) ester; Cu(Ⅲ)ion; complex;
【Key words】 ESR; 2-ethylhexyl phosphonic acid mono(2-ethylhexyl) ester; Cu(Ⅲ)ion; complex;
- 【文献出处】 应用化学 ,Chinese Journal of Applied Chemistry , 编辑部邮箱 ,1991年03期
- 【被引频次】2
- 【下载频次】35