Abstract :
In this research work the complexes of 5-methoxy-2-[[(4-methoxy-3, 5-dimethyl-2 pyridinyl) methyl]
sulfinyl] -1H-benzimidazole with Co(II), Ni(II) and Cd(II) salts were prepared and characterized by conductivity,
melting points and (IR and UV-Vis.) Spectroscopy studies, the ligand (omeprazole) works as bidenate O, N donor
and forms co-ordinate bonds through C=N and S=O groups. Depending on the low conductivity values showed that
these complexes were non – electrolytic in nature. Electronic spectra reveal octahedral geometry for all complexes.
the Gaussian09 program by PM6 Semi-empirical method was used to calculate the IR and UV-Vis.) Spectroscopy
and thermodynamic functions for ligand and its complexes and compared them with the experimental calculations
which showed there is a simple difference between them (experimental and theoretical).
Keyword :
Omeprazole, complex, (IR, UV-Vis.) spectroscopy, PM6 Semi-empirical.