190662-89-6Relevant academic research and scientific papers
Synthesis and characterization of Zn(II), Cd(II) and Hg(II) complexes with imidazole derivatives. Crystal structure of dichloro-bis (5-amino-4-carboethoxy-1-p-methoxyphenylimidazole)zinc(II)
Lopez-Garzon,Gutierrez-Valero,Godino-Salido,Sanchez-Rodrigo,Nogueras Montiel,Moreno,Odedra,El-Bayouki
, p. 33 - 38 (1997)
Two imidazole-derivative ligands, 5-amino-4-carboethoxy-1-p-methoxyphenyl-imidazole (L) and 5-amino-4-nitrile-1-p-methoxyphenylimidazole (L′), have been prepared and their interactions with Zn(II), Cd(II) and Hg(II) reported. For the L ligand a series of complexes of general formulae MC2Lx, where x = 1 or 2, has been obtained while for the L′ ligand only the Cd(II) complex fits with the general formulae. For this latter ligand the corresponding Hg(II) complexes were not isolated and a Zn(II) complex was obtained with the ligand in the protonated form. All the complexes have been characterized by spectroscopic and thermal techniques. In addition, the crystal structure of the ZnCl2L2 complex is reported. The compound crystallized in the monoclinic system, space group P-1, with cell constants a = 8.7328(18), b = 10.5494(21) and c = 17.3269(34) A, α = 75.265(10), β = 81.094(17) and γ = 70.939(11)° and Z=2. The structure was solved and refined to R = 0.056 (Rw = 0.031). The structure consists of discrete neutral ZnCl2L2 entities in which the L ligand coordinates through the N atom belonging to the imidazole ring, the Zn(II) ion exhibiting a distorted tetrahedral geometry.
