Complexes of Some Bivalent Metal Ions with Organic Ligands having Thioamide Group.

Abstract

Complexes of Zn(II), Cd(II), Hg(II), Sn(II), Pd(II) and Cu(II) with butyl, phenyl, and m-tolyl derivative of 2-mercapto-3-substituted quinazoline-4-one have been prepared and investigated using various physico-chemical techniques. All are tetrahedral but Cu(II) complexes have distorted octahedral configuration. The nature of shifts and change in intensity of all four thioamide bands of the ligands are used as diagnostic for metal-ligand bonding. Metal ligand vibrations in the far infrared spectra of complexes have been thoroughly examined.