Copper-imidazole-chloride/bromide complexes

Mercury(II) Complexes of Imidazole and Histidine

Copper(ii) complexes of a polydentate imidazole-based ligand. pH effect on magnetic coupling and catecholase activity.

A potentially dodecadentate N8O4-donor ligand obtained from 2,2'-biimidazole and l-valine and its tetranuclear Cu(ii) complexes in different degrees of protonation were characterized by chemical and spectroscopic methods. The extensive solution studies performed reveal that the rise in pH media leads successively to the formation of imidazolato (pKa(1) and pKa(2) and hydroxido (pKa(3) and pKa(4...

Di­chlorido­bis­[1-(2,4,6-tri­methyl­phen­yl)-1H-imidazole-κN 3]copper(II)

In the title complex, [CuCl2(C12H14N2)2], the Cu(2+) cation is situated on an inversion centre and is coordinated by two N atoms from symmetry-related 1-mesityl-1H-imidazole ligands and by two chloride anions in a slightly distorted square-planar geometry. In the organic ligand, the dihedral angle between the benzene ring of the mesityl moiety and the imidazole ring is 76.99 (18)°. Weak intra-m...

Equilibrium studies on mixed-ligand mixed-metal complexes of copper(II), nickel(II) and zinc(II) with glycylvaline and imidazole

lmidazolate bridged homo/hetero binuclear complexes of copper(II), nickei(II) and zinc(II) formed with glycylvalinate have been studied by pH-metry, EPR and visible absorption spectrometry in aqueous medium at 25 ± I 0 and I= 0.1 M NaCI04• The experimental data have been obtained for the followin~ species (A. = glycylvalinate and 8 =imidazole) :M +, AHt , AH, A·, 8W, 8 , M(OHt. M(OHh. M(At, M(A...

Chlorido(1H-imidazole-κN 3)bis­(triphenyl­phosphane-κP)copper(I)

In the title complex, [CuCl(C(3)H(4)N(2))(C(18)H(15)P)(2)], the coordination geometry around Cu(I) is distorted tetra-hedral formed by two triphenyl-phosphane ligands, an imidazole ligand and a chloride group. An intra-molecular C-H⋯Cl inter-action occurs. The crystal packing is stabilized by inter-molecular N-H⋯Cl hydrogen bonds, which form an extended chain parallel to [010].