Synthesis and Spectral Identification of Some Transition Metal Complexes with New Ligand of Dithiocarbamate

Abstract

New dithiocarbamate ligand Ammonium(2,4-dichloro phenyl-N-dithio carbamate (DMePDTC) was prepared by reaction of between 2,4-dichloro aniline with carbon disulfide (CS₂)in the presence of ammonium hydroxde solution .Five new metal complexes of chloride salts of Fe(III),Co(II),Ni(II),Cu(II) and Zn(II) ions were prepared.The structure of dithiocarbamte ligand and reslting complexes in vestigated using spectral and analyticalmeans available such as elemental analysis (C.H.N.S),detereminatino of metal content M%,molar conductivity measurements,magnetic moments measurements, infrared and electronic spectra .The potential structures of complexes have been identified by findind the molar ratio of the relation (metal:ligand) which the study indicates as 1:2 [M:L] for all complexes expected Zn(II)-complex is 1:1[M:L] where study .Depending on the results which have been reached at we can propose the interstitial forms of the prepared complexes where the Co(II) and Ni(II)  complexes takes a octahedral geometry with sp³d² hybridization and suggested square planer geometry of Cu(II)-complexwith dsp² hybridizotionand suggested tetrahedral geometry of Zn(II)-complexwith sp³ hybridizotionwhile square pypramid geometry of Fe(III)-Complex with sp³d  hybridizotion.

Keywords:Dithiocarbamate,metal chelate complexes,caracterization.