STRUCTURAL CHEMISTRY OF SOME IMIDAZOLE COMPLEXES

Synthesis of benzimidazole and ($) over bar 4 (Imidazole 1-yl) acetoph enone complexes derived from cobalt(II), nickel(II), copper(II), palla dium(II) and platinum(IV) salts were carried out. The elemental analys es suggest the formation of 1:2 and 1.4 stoichiometries (M:L). Electro nic spectra and magnetic susceptibility measurements are used to infer the structures. The i.r. spectra of the ligands and their complexes a re used to identify the type of bonding. Thermal analysis and electric al conductivity measurements were investigated in the temperature rang e 30-250 degrees C. The results indicate slight semiconducting propert ies.