Copper(I) and Silver(I) Complexes of 1-alkyl-2-(methyl)-4-(arylazo)imidazole. Synthesis, Spectral Studies and Electrochemistry

Copper(I) and Silver(I) Complexes of 1-alkyl-2-(methyl)-4-(arylazo)imidazole. Synthesis, Spectral Studies and Electrochemistry

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 C...

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Veröffentlicht in:Transition metal chemistry (Weinheim) 2006-04, Vol.31 (3), p.293-298
Hauptverfasser: Senapoti, Sanjay, Sarker, Kamal Krishna, Mondal, Tapan Kumar, Sinha, Chittaranjan
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container_end_page 298
container_issue 3
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container_title Transition metal chemistry (Weinheim)
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creator Senapoti, Sanjay
Sarker, Kamal Krishna
Mondal, Tapan Kumar
Sinha, Chittaranjan
description 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')^sub 2^](ClO^sub 4^) (5, 6). These complexes show a moderately intense visible band (500-600 nm) which has been assigned to 3d(Cu) [arrow right] π*(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^sup -^ reference electrode. All these complexes have been structurally characterized by ^sup 1^H NMR spectroscopic data.[PUBLICATION ABSTRACT]
doi_str_mv 10.1007/s11243-005-6376-1
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title Copper(I) and Silver(I) Complexes of 1-alkyl-2-(methyl)-4-(arylazo)imidazole. Synthesis, Spectral Studies and Electrochemistry
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