Synthesis, Characterization and Biological Evaluation of New Dithiocarbamate Ligand and Its Complexes with some Metal Ions

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Ahmed T. Numan Kaiss R. Ibraheem Mohammed K. Ibrahim

Abstract

  New bidentate dithiocarbamate ligand (NaL) namely [Sodium-2-(((3-methyl -4- “(2,2,2-tri fluoro ethoxy) pyridin-2”-yl) methyl) sulfinyl)-1H-benzoimidazole -1-carbodithioate] was prepared. This free ligand was synthesized from the reaction of a (RS)-2-([3-methyl -4-(2,2,2-tri fluoroethoxy) pyridin-2-yl] methyl sulfinyl)-1H benzoimidazole, CS2 and NaOH in methanol as solvent. From reaction of dithiocarbamate salt (NaL) with metal ions (M); Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Pd(II)”, have obtained  the DTC complexes at general molecular formula [M(L)2(H2O)2] and [Pd(L)2]. To characterize the ligand and its complexes, used different analyses methods such FTIR, UV-Vis, elemental microanalysis, atomic absoreption, magnetic susceptibility, conductance, melting points, 1H- 13C- NMR spectroscopy, thermal analysis and mass spectrum.  These studies indicated the formation of DTC complexes which their geometries about metal centers are octahedral; except Pd-complex is square planer. The bacterial activity evaluation against investigated bacterial species indicated that the metal complexes are more active than the free ligand when compared them.

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How to Cite
NUMAN, Ahmed T.; IBRAHEEM, Kaiss R.; IBRAHIM, Mohammed K.. Synthesis, Characterization and Biological Evaluation of New Dithiocarbamate Ligand and Its Complexes with some Metal Ions. Ibn AL- Haitham Journal For Pure and Applied Science, [S.l.], v. 30, n. 3, p. 211-266, dec. 2017. ISSN 2521-3407. Available at: <http://jihcoed.com/ihj/index.php/j/article/view/1617>. Date accessed: 15 oct. 2018. doi: http://dx.doi.org/10.30526/30.3.1617.
Section
Chemistry