EPR study on the charge-transfer photochemistry of the bromide mixed-ligand dithiocarbamate complex of copper(II)

被引：5

作者：

Doicheva, M ^{[1
]}

Jeliazkova, B ^{[1
]}

机构：

[1] Univ Sofia, Dept Chem, Sofia 1164, Bulgaria

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1998年 / 54卷 / 14期

关键词：

charge-transfer photochemistry; EPR; copper(II);

D O I：

10.1016/S1386-1425(98)00218-2

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The EPR technique has been used to study the photolysis of the mixed-ligand complex Cu-II(Et(2)dtc)Br in a 1:1 solvent mixture of chloroalkane and alcohol, where the chloroalkane is CCl4, CHCl3 or CH2Cl2 and the alcohol is MeOH, EtOH, i-PrOH or i-BuOH, in comparison with Cu-II(Et(2)dtc)Cl photolysis in CHBr3:ROH. It was found that while Cu-II(Et(2)dtc)Br photolysis in chloroalkane:ROH yielded Cu-II(Et(2)dtc)Cl as an intermediate, the opposite conversion of Cu-II(Et(2)dtc)Cl to Cu-II(Et(2)dtc)Br proceeded via Cu-II(Et(2)dtc)Cl photolysis in CHBr3:ROH. The final photolytic products in both cases were tetraethylthiuramdisulphide and the corresponding copper(II) salt (CuCl2 or CuBr2, respectively). The results obtained by EPR allowed to get some insight into the behaviour of the primary photolytic products towards both components of the mixed solvent. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：2385 / 2392

页数：8

共 8 条

[1] REDOX TRANSFER .V. ELEMENTARY STEPS . OXIDATION OF FERROUS AND CUPROUS CHLORIDE BY CARBON TETRACHLORIDE [J].