The reaction between benzimidazole (L 1), 4-phenylmidazole (L 2) or 2-phenylimidazole (L 3) and CdX 2 (X = Cl, Br, NO 3, ClO 4 or CH 3COO) has been investigated. 12 novel adducts have been obtained and characterized by analytical (elemental analysis and conductivity measurements) and spectral (IR, far IR, 1H and in some cases 113Cd NMR) data. The ligands L 1, L 2 and L 3 behave in the monodentate N-donor fashion, yielding 2:1 (L 2CdX 2; L = L 1, L 2 and L 3, X = Br and CH 3COO), 3:1 (L 3CdX 2; L = L 1, L 2 and L 3, X = Cl and ClO 4), 4:1 (L 4CdX 2; L = L 1 and L 3, X = ClO 4 and NO 3), 5:1 (L 5CdX 2; L = L 2, X = NO 3 and CH 3COO) and 3:2 (L 3[CdX 2] 2; L = L 3, Cl). The behavior of the adducts in acetone and chlorinated solvents is also discussed. Comparison is made with related Cd(II) and Zn(II) complexes of imidazoles.
On the interaction between imidazoles and cadmium salts. Comparison between cadmium and zinc complexes of imidazoles
PELLEI, Maura;
2001-01-01
Abstract
The reaction between benzimidazole (L 1), 4-phenylmidazole (L 2) or 2-phenylimidazole (L 3) and CdX 2 (X = Cl, Br, NO 3, ClO 4 or CH 3COO) has been investigated. 12 novel adducts have been obtained and characterized by analytical (elemental analysis and conductivity measurements) and spectral (IR, far IR, 1H and in some cases 113Cd NMR) data. The ligands L 1, L 2 and L 3 behave in the monodentate N-donor fashion, yielding 2:1 (L 2CdX 2; L = L 1, L 2 and L 3, X = Br and CH 3COO), 3:1 (L 3CdX 2; L = L 1, L 2 and L 3, X = Cl and ClO 4), 4:1 (L 4CdX 2; L = L 1 and L 3, X = ClO 4 and NO 3), 5:1 (L 5CdX 2; L = L 2, X = NO 3 and CH 3COO) and 3:2 (L 3[CdX 2] 2; L = L 3, Cl). The behavior of the adducts in acetone and chlorinated solvents is also discussed. Comparison is made with related Cd(II) and Zn(II) complexes of imidazoles.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
