عنوان المقالة:معقدات احادية النواة الجديدة مع قاعدة شف تحضير ، تشخيص و دراسة الفعالية البايلوجية. Synthesis , characterize and biological studies of (Cr(III) ,Mn(II) ,Zn(II)and Cd(II)) complexs with Schiff-base ligand.
رياض محمود احمد ،حسن احمد حسن، انعام اسماعيل يوسف و ضحى فاروق حسين
English Authors
Riyadh M. Ahmad ,Hasan A. Hasan , Enaam I. Yousif and Dhuha F. Hussien
Abstract
The new multidentate Schiff-base ligand (2,6-bis-[(3-phenyl thiourea-imino)-methyl]-
phenol) HL and its monomeric metal complexes with Cr(III) ,Mn(II) ,Zn(II)and Cd(II) are
reported. The ligand HL was derived from the condensaon reacon of ( 2,6-diformyl-4-
methyl-phenol) with (4-phenylthiosemicarbazide) in mole raos of 1:2 . The complexes were
prepared from the reaction of the corresponding metal chloride with the ligand .The ligand
and its metal complexes were characterised by spectroscopic methods (FTIR, UV-Vis,1H
NMR,
13C. A.A), chloride content, conductance and melting point measurements.These
studies revealed octahedral geometries for Cr(III), Mn(II), and Cd(II) complexes of general
formulae [CrIII(L)Cl]Cl, [MnII(L)Cl] and [CdII (L)Cl] and five co-ordinate Zn(II) complex of
general formula [ZnII(L)]Cl .Biological activity of the ligand and its metal complexes against
gram positive bacterial strain Bacillus (G+) and gram negative bacteria Pseudomonase (G-)
revealed that the metal complexes become less resistive to the microbial activities as
compared to the free ligand.
رياض محمود احمد | Riyadh Mahmood Ahmed | 12018