Spectroscopic properties, structures and thermal decomposition of mixed cadmium(II) complexes of o-hydroxybenzoic acid and imidazoles

Crystal structure of 4-bromo-1H-imidazole, at 200 K, C3H3BrN2

“…Structural information about coordination compounds derived from other imidazole derivatives are apparent in the literature, e.g. for1,2-dimethylimidazole and -among otherscadmium [1],copper [2] and ruthenium [3].The title compound is abrominated derivative of 1H-imidazole. Themolecule is essentially planar (r.m.s of all fitted non-hydrogen atoms=0.0129 Å) with the carbon atom bearing the bromine substituent deviating most from the commonplane by 0.018(2) Å. Intracyclic angles cover ar ange of 104.6(2)-111.4(3)°with the smallest angle found on the nitrogen atom that does not bear ahydrogen atom and the largest angle to be found on, both, the carbon atom bearing the bromine atom and the carbon atom bonded to both nitrogen atoms.…”

IR spectra, X-ray diffraction studies and thermal analysis of cadmium(II) complexes with o-aminobenzoic acid and imidazoles

“…Previously, the results of investigations of Zn(Hsal) 2 [6], Zn(Han) 2 [7], Cd(Hsal) 2 [15], Cu(sal) [2] and Cd(sal) [1] (where Hsal = OHC 6 H 4 COO À , Han = NH 2 C 6 H 4 COO À , sal = OC 6 H 4 COO 2À ) with imidazoles were published. Recently, we have prepared new cadmium complexes with o-aminobenzoic acid and imidazole, 4-methylimidazole or 1,2-dimethylimidazole of general formulae: Cd(Han) 2 (Him) 4 , Cd(Han) 2 (Him) 5 Cd(Han) 2 (4-MeHim) 4 , Cd(Han) 2 (1,2-diMeim) 2 .…”