Structures of copper(II) complexes with dihydrobenzoxazine derivatives in chloroform

被引：1
|
作者：
Apenysheva, T. E. [1 ]
Bukov, N. N. [1 ]
Sklyar, A. A. [1 ]
Bolotin, S. N. [1 ]
Pushkareva, K. S. [1 ]
机构：
[1] Kuban State Univ, Krasnodar 350640, Russia
来源：
RUSSIAN JOURNAL OF COORDINATION CHEMISTRY | 2006年 / 32卷 / 05期
关键词：
D O I：
10.1134/S1070328406050058
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Copper(II) complexes CuL2 (HL = 2-(2-hydroxyphenyl)-4,4-diphenyl-1,2-dihydro-4H-3,1-benzoxazine and 2-(2-hydroxy-5-nitrophenyl)-4,4-diphenyl-1,2-dihydro-4H-3,1-benzoxazine) in chloroform were studied by EPR and electronic absorption spectroscopy. It was found that the complexation involves the azomethine forms of the ligands, which are coordinated by the Cu atom through the phenol and azomethine fragments of both ligands. The electronic absorption spectra were decomposed into Gaussian components to determine the d-d. transition energies. The parameters of the complexation were calculated in terms of the angular overlap model. The order of energy arrangement of the orbitals of the central atom was determined: d(x2-y2) >> d(xy) > d(z2) > d(xz) > d(yz).
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页码：335 / 338
页数：4
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