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

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

Synthesis,Characterization,Thermal and Kinetic Photo Chemical Decomposition Study of New Azo Dye 7-[2-(BenzImidazolyl)Azo]-8-Hydroxy Quinoline and its Znic (II) Complex

This research includes preparation and spectral identification of a new azo ligand7-[2-(Benzimidazolyl) azo]-8-Hydroxy quinoline (BIAHQ) by using UV-Vis,  IR, 1H-NMR and mass spectra.The preparation of Zn(II)-complex of this ligand and identification by UV-Vis, IR radation spectrum,which characterized by elemental analysis.The analytical data shows that the metal to ligand ratio [M:L] of Zn(II)complex is 1:2.Decomposition kinetics was studied photochemical complex through irradiation solution complex single wavelength light ?=365 nm ,at temperature of 25 ?C for 60 minutes  and ethanol solvent was found to be the reaction from first order. Also,the calculated rate concetant photolysis kd mediated follow spectral changes during the process of irradiation . In order to reach the optimal conditions for the dissolution of the complex, it has been studied the impact of several factors on photochemical reaction of disintegration of the complex which include : Study the effects of the change in the intensity of light. More over  disintegration of the complex has been studied in temperature range 15-30?C, and studied the effects of the acidic function within range 3-9.The effects of several alcoholic solvents were studied on the rate of disintegration and these solvents are methanol, ethanol, isopropanol and1-butanol.Free ligand and Zn(II)complex were submitted to thermal analysis(TGA and DSC) activation thermodynamic data are calculated

Preparation complexes Co(III), Ni(II), and Cu(II) with novel azo-Schiff base ligand (N, N, O) derived from 2- amino- 6- methoxy benzothiazole with spectral characterization, study biological activity as anti-cancer, anti-oxidant to complexes

The biological activity of the Co (III), Ni (II), and Cu (II) complexes of bidentate azo-Schiff bases derived from the 2-amino-6-methoxy Benzothiazole has been investigated. The azo-Schiff bases and their metal complexes were described using element analyses, magnetic moment measurements, spectroscopic (IR, electronic, 1H NMR, XRD), and thermogravimetric examinations. An octahedral geometry has been postulated for Co (III), Ni (II), and Cu (II) complexes. Coordinated water was established by thermal and infrared data from the metal complexes. The anti-cancer and anti-oxidant capabilities of Schiff bases and their metal complexes have been investigated

Synthesis, characterization, and cytotoxic activity of some transition metal complexes with didentate (N,N) donor azo dye ligand derived from p-Anisidine

In an alkaline ethanolic solution, 2-[1-(4-Methoxyphenyl)azo]-4,5-dichloro imidazole (4-MPADI) was prepared by reacting a diazonium chloride salt solution of p-Anisidine with 4,5-Dichloroimidazole. Various metal ions, such as Cu(II), Pt(IV) and Au(III), were complexed with the synthesized ligand 4-MPADI. A variety of spectral techniques have been used to study the structures of the azo dye ligand (4-MPADI) and its chelate complexes, including elemental analysis (C.H.N), mass spectrum, 1H NMR, 13C NMR, FT-IR, UV–Vis, XRD, thermal analysis (TGA/DTA), and magnetic measurements. The molar conductivity indicates the complexes are electrolytes and contain conductive species except for the Cu(II)-Complex. Based on the results, the ligand (N, N) behaves as a didentate and coordinates to the metal ion via the nitrogen atom of the azomethine group (C = N) of heterocyclic imidazole molecule, as well as the nitrogen atom of the azo group (N = N). Additionally, DPPH radical scavenging assays were used to investigate the antioxidant activity of the ligand, Pt(IV), and Au(III). A DPPH radical scavenging assay measured the antioxidant activity of produced compounds in comparison with ascorbic acid, a known antioxidant. However, in vitro anticancer and toxicity test results were obtained against human oesophagal cancer (SK-GT4) cells using the ligand (4-MPADI), Pt(IV) and Au(III)

Preparation, spectroscopic characterization and study of biological activity as anticancer of some compounds using a new azo-Schiff base ligand (N,N,O) derived from 2-amino-5-methyl thiazol

The biological activity of the Co(III) complex of azo-Schiff bases derived from 2-amino-5-methylthiazole azo-Schiff bases was studied. Elementary examines, attractive instant volumes, spectroscopy (IR, electronic, 1 H NMR, and XRD), then thermogravimetric investigations described the azo-Schiff bases and their mineral complexes. For the cobalt complex, an octahedral geometry has been proposed. Thermal and infrared data of the mineral complexes confirmed the presence of the collected water. Schiff bases and mineral complexes have been tested for their anti-cancer propertie