Structure of copper(II)-bpy and -phen complexes: EXAFS and spectrophotometric studies on the structure of copper(II) complexes with 2,2′-bipyridine and 1,10-phenanthroline in aqueous solution
Structure of copper(II)-bpy and -phen complexes: EXAFS and spectrophotometric studies on the structure of copper(II) complexes with 2,2′-bipyridine and 1,10-phenanthroline in aqueous solution
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铜(II)-bpy和-phen配合物的结构：水溶液中铜(II)与2,2-联吡啶和1,10-菲咯啉配合物结构的EXAFS和分光光度研究
DOI：
10.1016/s0020-1693(00)84937-3
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发表时间：
1991
影响因子：
2.8
通讯作者：
T. Kawashima
中科院分区：
文献类型：
--
作者：
K. Ozutsumi;T. Kawashima
用EXAFS和分光光度法研究了铜（Ⅱ）与2，2 ′-联吡啶（bpy）和1，10-邻菲咯啉（phen）配合物在水溶液中的结构。以[Cu（bpy）]2+、[Cu（bpy）2]2+和[Cu（bpy）3]2+为主要组分的溶液的EXAFS数据和电子光谱表明，单（2，2 ′-联吡啶）铜（II）配合物具有轴向拉长的八面体结构，并含有4个额外的水分子，三（2，2 ′-联吡啶）铜（II）配合物也具有扭曲的八面体结构.另一方面，双（2，2 ′-联吡啶）铜（II）配合物具有五配位的三角双锥结构，并具有额外的水分子。单和三（1，10-菲咯啉）铜（II）配合物的结构与2，2 ′-联吡啶配合物类似，均为轴向拉长的八面体结构.双（1，10-菲咯啉）铜（II）配合物的结构是不能确定的，因为它在水中的溶解度非常低，目前的传输模式EXAFS实验。
The structure of copper(II) complexes with 2,2′-bipyridine (bpy) and 1,10-phenanthroline (phen) in aqueous solution has been studied by EXAFS and spectrophotometric methods. The EXAFS data and electronic spectra for solutions containing [Cu(bpy)]2+, [Cu(bpy)2]2+and [Cu(bpy)3]2+complexes as the main species, respectively, showed that the mono(2,2′-bipyridine)copper(II) complex has an axially elongated octahedral structure with four additional water molecules and the tris(2,2′-bipyridine)copper(II) complex also has a distorted octahedral structure. On the other hand, the bis(2,2′-bipyridine)copper(II) complex has a five-coordinate trigonal bipyramidal structure with an additional water molecule. It was also shown that the structure of the mono- and tris(1,10-phenanthroline)copper(II) complexes is axially elongated octahedral similar to the relevant 2,2′-bipyridine complexes. The structure of the bis(1,10-phenanthroline)copper(II) complex was not determinable by the present transmission mode EXAFS experiment because of its very low solubility in water.