Copper(I) and silver(I) complexes of 1-alkyl-2-(methyl)-4-(arylazo)imidazole. Synthesis, spectral studies and electrochemistry

被引：10
|
作者：
Senapoti, S [1 ]
Sarker, KK [1 ]
Mondal, TK [1 ]
Sinha, C [1 ]
机构：
[1] Jadavpur Univ, Dept Chem, Inorgan Sect, Kolkata 700032, India
来源：
TRANSITION METAL CHEMISTRY | 2006年 / 31卷 / 03期
关键词：
D O I：
10.1007/s11243-005-6376-1
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
2-(Methyl)-4-(arylazo)imidazole (RLH) (1, 2) are new series of azoimidazoles. Upon treatment of alkylhalide in dry THF in presence of NaH has synthesised 1-alkyl-2-(methyl)-4-(arylazo)imidazole (RLR') (3, 4). They belong to the azoimine family of N,N'-chelating ligand. They stabilize the Cu(I) oxidation state and we have synthesized [Cu(RLR')(2)](ClO4) (5, 6). These complexes show a moderately intense visible band (500-600 nm) which has been assigned to 3d(Cu) --> pi*(ligand) transition. Ag(I) complexes of RLR' (7, 8) are also very stable under ambient conditions and show weak transitions in the visible region. The Cu(I)-complexes show high potential Cu(II)/Cu(I) redox couple > 0.4 V vs Ag, AgCl/Cl- reference electrode. All these complexes have been structurally characterized by H-1 NMR spectroscopic data.
引用
收藏
页码：293 / 298
页数：6
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