Synthesis and characterization of VO(II), Cr(III),Mn(II), Fe(II),Zn(II),Cd(II),Hg(II) and UO2(VI) complexes with ligands containing (ONO) and (ON) donor set atoms

A new Schiff base o-hydroxybenzylidene-1-phenyl-2,3-dimethyl-4-amino-3-pyrazolin-5-on (HL) ,have been prepared and characterization.(HL) has been used as a chelating ligand to prepare a number of metal complexes VO(II) ,Cr(III) ,Mn(II),Fe(II),Hg(II) and UO2(II) .and mixed ligands complexes have been prepared between o-hydroxybenzylidene-1-phenyl-2,3-dimethyl-4-amino-3-pyrazolin-5-on and 8- hydroxy quinoline with VO(II),Zn(II),Cd(II), Hg(II) and UO2(II) the prepared complexes were isolated and characterized by (FT-IR)and (UV-Vis) spectroscopy. Elemental analysis (C.H.N) Chloride contents, Flame atomic absorption technique. in addition to magnetic susceptibility and conductivity measurement. Molar ratio measurement in solution gave comparable results with those obtained from solid state study.

Download Full-text

Synthesis and characterization of mixed ligand complexes of 8- hydroxy quinoline and Schiff base with some metal ions

Baghdad Science Journal ◽

10.21123/bsj.4.1.102-109 ◽

2007 ◽

Vol 4 (1) ◽

pp. 102-109

Author(s):

Baghdad Science Journal

Keyword(s):

Conductivity Measurement ◽

Mixed Ligand ◽

Mixed Ligand Complexes ◽

Flame Atomic Absorption ◽

Vis Spectroscopy ◽

Atomic Absorption Technique ◽

Ft Ir ◽

Hydroxy Quinoline ◽

Absorption Technique

A new mixed ligand complexes have been prepared between 8- hydroxy quinoline and o-hydroxybenzylidene-1-phenyl-2,3-dimethyl-4-amino-3-pyrazolin-5-on with Mn(II),Fe(II),Co(II),Ni(II) and Cu(II) ions . the prepared complexes were isolated and characterized by (FT-IR)and (UV-Vis) spectroscopy. Elemental analysis (C.H.N) Flame atomic absorption technique . in addition to magnetic susceptibility and conductivity measurement.

Download Full-text

Complexes of Some Transition Metal with 2-Benzoyl thiobenzimidazole and 1,10-Phenanthroline and Studying their Antibacterial Activity

Baghdad Science Journal ◽

10.21123/bsj.13.2.84-94 ◽

2016 ◽

Vol 13 (2) ◽

pp. 84-94

Author(s):

Baghdad Science Journal

Keyword(s):

Antibacterial Activity ◽

Gas Phase ◽

Theoretical Treatment ◽

Imine Group ◽

Mixed Ligands ◽

Flame Atomic Absorption ◽

Vis Spectroscopy ◽

Ft Ir ◽

Micro Analysis ◽

Gaussian Program

Mixed ligands of 2-benzoyl Thiobenzimiazole (L1) with 1,10-phenanthroline (L2) complexes of Cr(III) , Ni(II) and Cu(II) ions were prepared. The ligand and the complexes were isolated and characterized in solid state by using FT-IR, UV-Vis spectroscopy, 1H, 13C-NMR, flame atomic absorption, elemental micro analysis C.H.N.S, magnetic susceptibility , melting points and conductivity measurements. 2-Benzoyl thiobenzimiazole behaves as bidenetate through oxygen atom of carbonyl group and nitrogen atom of imine group. From the analyses Octahedral geometry was suggested for all prepared complexes. A theoretical treatment of ligands and their metal complexes in gas phase were studied using HyperChem-8 program, moreover, ligands in gas phase also has been studied using Gaussian program (GaussView Currently Available Version (5.0.9) along with Gaussian 09 which was the latest in the Gaussian series of programs). The antibacterial activity of the prepared complexes have been determined and compared with that of the ligand and the standard metronidazole.

Download Full-text

Synthesis, spectroscopic study of Pt (IV), Au (III), Rh(III),Co(II) and V (IV) complexes with sodium[5-(p-nitro phenyl) -/4- phenyl-1,2,4-triazole-3-dithiocarbamato hydrazide] and cytotoxicity assay on rhabdomyosarcoma cell line of heavy metals

Baghdad Science Journal ◽

10.21123/bsj.9.4.668-679 ◽

2012 ◽

Vol 9 (4) ◽

pp. 668-679 ◽

Cited By ~ 1

Author(s):

Baghdad Science Journal

Keyword(s):

Cell Line ◽

Molar Absorptivity ◽

Molar Ratio ◽

Ratio Method ◽

Ethanolic Solution ◽

Flame Atomic Absorption ◽

Square Planar ◽

Vis Spectroscopy ◽

Molar Ratio Method ◽

Ft Ir

All the prepared metal complexes of Pt (IV), Au(III), Rh (III), Co (II) and V(IV) with new ligand sodium [5-(p-nitro phenyl)-/4-phenyl-1,2,4-triazole-3-dithiocarbamato hydrazide] (TRZ.DTC) have been synthesized and characterized in solid state by using flame atomic absorption, elemental analysis C.H.N.S, FT-IR ,UV-Vis Spectroscopy, conductivity and magnetic susceptibility measurements. The nature of the complexes formed in ethanolic solution has been studied following the molar ratio method also was studied stability constant and found to be stable in molar ratio1:1 of VL (IV) and CoL(II) while Pt(IV), Au(III) and Rh(III) complexes stable in molar ratio 1:2 as well as the molar absorptivity for these complexes were calculated. From the previous analyses, octahedral geometry was suggested for Pt (IV), Rh (III) and Co (II) complexes, square planar was suggested for Au(III) complex while V(IV) complex has a square pyramidal. Cytotoxic effect of PtL, AuL and RhL as well as ligand has been evaluated against RD cell line by using four different concentrations (500, 250, 125 & 62.5 µg/ml) respectively in three exposure times 24, 48 and 72 hrs and compared this effect with control positive Cis-Pt.

Download Full-text

Synthesis and characterization of some biological active transition metal complexes of Schiff base derived from cefixime with mixed ligand 8-hydroxy quinoline

Baghdad Science Journal ◽

10.21123/bsj.12.4.797-807 ◽

2015 ◽

Vol 12 (4) ◽

pp. 797-807

Author(s):

Baghdad Science Journal

Keyword(s):

Melting Point ◽

Metal Ion ◽

Bidentate Ligand ◽

Mixed Ligand ◽

Molar Ratio ◽

Synthesis And Characterization ◽

Vis Spectroscopy ◽

Ft Ir ◽

Hydroxy Quinoline

The aim of the work is synthesis and characterization of bidentate ligand [dipotassium sodium7-((E)-2-(2-((Z)-1-carboxylatoethylideneamino)thiazol-4-yl)-2 (carboxylatemethoxyimino) acet amido)-8-oxo-3-vinyl-5- thia-1-azabicyclo[4.2.0] oct-2- ene-2- carboxylate] [Nak2L], from the reaction of cefixime with sodium pyruvet to produce the ligand [Nak2L], the reaction was carried out in methanol as a solvent under reflux. The prepared ligand [Nak2L] which was characterized by FT-IR, UV-Vis spectroscopy, 1H, 13C-NMR spectra, Mass spectra, (C.H.N) and melting point. The mixed ligand complexes were prepared from ligand [Nak2L] was used as a primary ligand while 8-hydroxy quinoline [Q] was used as a secondary ligand with metal ion M(?).Where M(?) = (Mn ,Co ,Ni ,Cu ,Zn and Cd) at reflux ,using methanol as a solvent, KOH as a base. Complexes of the composition [(M)2(Q)2(KL)(H2O)4] with (2:2:1) molar ratio were prepared. All the complexes were characterized by spectroscopic methods (FT-IR, UV-Vis spectroscopy) along with elemental analysis (A.A), chloride content and melting point measurements were carried out, together with conductivity and magnetic susceptibility. These measurements showed octahedral geometry around (Mn??, Co??, Ni??, Cu??, Zn?? and Cd??) ions. The biological activity of the ligands [NaK2L], [Q] and complexes [(M)2(Q)2(KL)(H2O)4] were studied by using inhibition method.

Download Full-text

Synthesis, Spectral Studies, and Theoretical Treatment of New Ni(II),and Co(II) Complexes of Bidenetate Ligands 2-Benzamido Benzothiazole ,and 2-Actamido Benzothiazole

Baghdad Science Journal ◽

10.21123/bsj.10.3.638-649 ◽

2013 ◽

Vol 10 (3) ◽

pp. 638-649

Author(s):

Baghdad Science Journal

Keyword(s):

Metal Complexes ◽

Electronic Spectroscopy ◽

Conductivity Measurement ◽

Spectral Studies ◽

Theoretical Treatment ◽

Flame Atomic Absorption ◽

Monomer Structure ◽

Atomic Absorption Technique ◽

Homo And Lumo ◽

Ft Ir

New metal complexes of the ligands 2-benzamido benzothiazole(B1), and 2-actamido benzothiazole(B2) with metal ions Ni(II),and Co(II) were prepared in alcoholic medium. The prepared complexes were characterized by FT-IR and electronic spectroscopy, Magnetic susceptibility, Flame Atomic Absorption technique as well as elemental analysis and conductivity measurement. From the spectral studies, an octahedral monomer structure proposed for Ni(II) complexes, and a tetrahedral monomer structure for Co(II)complexes.Semi-empirical methods (PM3,and ZINDO/1)were carried out to evaluate the heat formation( ?H?f)binding energy(?Eb) and dipole moment(µ)for all metal complexes. Also vibration frequencies, Electrostatic potential, HOMO and LUMO energies for ligands were calculated.

Download Full-text

Synthesis, Characterization and Biological Efficacies from Some New Dinuclear Metal Complexes for Base 3-(3,4-Dihydroxy-phenyl)-2-[(2-hydroxy-3-methylperoxy-benzylidene)-amino]-2-methyl Propionic Acid

Indonesian Journal of Chemistry ◽

10.22146/ijc.49842 ◽

2020 ◽

Vol 20 (6) ◽

pp. 1311

Author(s):

Shatha Mohammed Hassan Obaid ◽

Jasim Shihab Sultan ◽

Abbas Ali Salih Al-Hamdani

Keyword(s):

Biological Activity ◽

Schiff Base ◽

Metal Complexes ◽

Schiff Base Complexes ◽

Molar Ratio ◽

Spectral Studies ◽

Physical Analysis ◽

Flame Atomic Absorption ◽

Vis Spectroscopy ◽

Ft Ir

The reaction of methyldopa with o-vanillin in refluxing ethanol afforded Schiff base and characterized through physical analysis with a number of spectra also the study of biological activity. The geometry of the Schiff base was identified through using (C.H.N) analysis, Mass, 1H-NMR, FT-IR, UV-Vis spectroscopy. Metal complexes of Cr3+, Mn2+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+ and Hg2+ with Schiff base have been prepared in the molar ratio 2:1 (Metal:L), (L = Schiff base ligand) except Hg2+ at molar ratio 1:1 (Hg:L). The prepared complexes were characterized by using Mass, FT-IR and UV-Vis spectral studies, on other than magnetic properties and flame atomic absorption, conductivity measurements. According to the results a dinuclear octahedral geometry has been suggested for Cr3+, Mn2+, Co2+, Ni2+, Cu2+ and Zn2+ complexes, dinuclear tetrahedral for Cd2+ and mononuclear tetrahedral for Hg2+ complex. This work highlights the relevance of metal complexation strategy to stabilize the ligands and improve their bioactivity. Schiff base complexes have been screen for their antibacterial activity against Gram negative and positive bacteria and antifungal activity showing promising antibacterial and biological activity.

Download Full-text

Synthesis, Characterization and Stability Study of V(IV), Zr(IV), Rh(III), Pd(II), Cd(II) and Hg(II) Complexes with Pyrazol Derivative

Baghdad Science Journal ◽

10.21123/bsj.11.4.1592-1603 ◽

2014 ◽

Vol 11 (4) ◽

pp. 1592-1603

Author(s):

Baghdad Science Journal

Keyword(s):

Schiff Base ◽

Elemental Analysis ◽

Uv Spectroscopy ◽

Molar Absorptivity ◽

Stability Study ◽

Molar Ratio ◽

Ratio Method ◽

Flame Atomic Absorption ◽

Vis Spectroscopy ◽

Ft Ir

In this work lactone (1) was prepared from the reaction of p-nitro phenyl hydrazine with ethylacetoacetate, which upon treatment with benzoyl chloride afforded the lactame (2). The reaction of (2) with 2-amino phenol produced a new Schiff base (L) in good yield. Complexes of V(IV), Zr(IV), Rh(III), Pd(II), Cd(II) and Hg(II) with the new Schiff base (L) have been prepared. The compounds (1, 2) were characterized by FT-IR and UV spectroscopy, as well as characterizing ligand (L) by the same techniques with elemental analysis (C.H.N) and (1H-NMR). The prepared complexes were identified and their structural geometries were suggested by using elemental analysis (C.H.N), flame atomic absorption technique, FT-IR and UV-Vis spectroscopy, in addition to magnetic susceptibility and conductivity measurements. Metal to ligand [M:L] ratio was obtained for all complexes in ethanol using molar ratio method, which gave comparable results with those obtained for the solid complexes. As well as the apparent stability constant of the complexes have been studied with the time and their color were stable for more than 4 hrs., furthermore the molar absorptivity have been calculated.

Download Full-text

Synthesis of Some Mixed ligands Complexes of (2-hydroxy benzaldine)-4-amino Antipyrine and 1,10-phenanthroline and Studying their antibacterial activity

Baghdad Science Journal ◽

10.21123/bsj.14.1.39-47 ◽

2017 ◽

Vol 14 (1) ◽

pp. 39-47

Author(s):

Baghdad Science Journal

Keyword(s):

Antibacterial Activity ◽

Transition Metal Ions ◽

Spectral Studies ◽

Bacterial Strains ◽

Mixed Ligands ◽

Flame Atomic Absorption ◽

Diffusion Technique ◽

Atomic Absorption Technique ◽

Ft Ir ◽

Absorption Technique

Complexes from the ligand (2-hydroxy benzaldine)-4-aminoantipyrine with some transition metal ions V(l?),Cr(lll),Fe(lll) and Co(ll) were prepared in the presence of the co-ligand 1,10-phenanthroline in alcoholic medium. These compounds were characterized by the available techniques: FT-IR ,UV-Visible ,magnetic susceptibility, Flame atomic absorption technique as well as elemental analysis and conductivity mesurments .From these spectral studies, a square pyramidal structure proposed for V(IV) complex and an octahedral geometry for Cr(III),Fe(III) and Co(II) complexes. The biological activity of the ligands and their complexes were evaluated by a gar plate diffusion technique against three human pathogenic bacterial strains: Pseudomonas aerogenuosa, E.schriachia coli. and Staphlococcus arureus. Some of the complexes were found to have a good antibacterial activity a gainst these pathogens.

Download Full-text

Mixed Ligand Complexes of quinoline-2-carboxylic acid and 4,4/-dimethyl-2,2/-bipyridyl with V(IV),Cr(III), Rh(III), Cd(II) and Pt(IV)

Baghdad Science Journal ◽

10.21123/bsj.11.3.1180-1191 ◽

2014 ◽

Vol 11 (3) ◽

pp. 1180-1191

Author(s):

Baghdad Science Journal

Keyword(s):

Carboxylic Acid ◽

Mixed Ligand ◽

Mixed Ligand Complexes ◽

Theoretical Treatment ◽

Tetrahedral Geometry ◽

Pyramidal Geometry ◽

Flame Atomic Absorption ◽

Vis Spectroscopy ◽

Atomic Absorption Technique ◽

Ft Ir

A new mixed ligand complexes were prepared by reaction of quinoline -2-carboxylic acid (L1) and 4,4?dimethyl-2,2?-bipyridyl (L2) with V(IV),Cr(III), Rh(III), Cd(II) and Pt(IV) ions. These complexes were isolated and characterized by (FT-IR) and (UV-Vis) spectroscopy, elemental analysis, flame atomic absorption technique, thermogravimetric analysis, in addition to magnetic susceptibility and conductivity measurements. Most complexes were mononuclear and with octahedral geometry, except Cd (II) with tetrahedral geometry, and V (IV) with square pyramidal geometry. A theoretical treatment of the ligands and the prepared complexes in gas phase was done using two programs Hyperchem.8 and Gaussian program (GaussView Currently Available Versions (5.0.9) along with Gaussian 09 which is the latest in the Gaussian series of programs).

Download Full-text

Cellulose Nanofiber-Supported Polyaniline Nanocomposite Conductive Film and its Conductive Properties

Materials Science Forum ◽

10.4028/www.scientific.net/msf.789.188 ◽

2014 ◽

Vol 789 ◽

pp. 188-193

Author(s):

Cao Xiang ◽

Shi Yan Chen ◽

Chuan Lu ◽

Yan Ge ◽

Hua Ping Wang

Keyword(s):

Organic Semiconductors ◽

In Situ Polymerization ◽

Conductivity Measurement ◽

Nanocomposite Films ◽

Molar Ratio ◽

Preparation Conditions ◽

Inorganic Acids ◽

Conductive Film ◽

Ft Ir ◽

Conductive Properties

As a conducting polymer, polyaniline (PANI) have found wide applications including electrode material, sensors and supercapacitors, which is attributed to a combination of the advantages for both organic semiconductors and nanomaterials. This article concentrates on the preparation of bacteria cellulose-polyaniline (BC/PANI) conducting nanocomposite films via in situ polymerization of anailine onto bacteria cellulose (BC) scaffold. A series of nanocomposites were prepared with different anailine concentration, doping acid concentration and molar ratio of monomer and oxidant. The as-prepared conducting nanocomposites were characterized by conductivity measurement, scanning electronic microscope (SEM), fourier transform infrared spectroscopy (FT-IR), thermogravimetric analyser (TGA), etc, to find out the best preparation conditions. The results indicated that PANI coated on the surface of nanofibers of bacterial cellulose, the nanoconductive path formed and the conductivity of the film ranged from 2.0×10-8to 0.24 S·cm-1. In addition, the method of combining organic and inorganic acids can solve the de-doped problem caused by using traditional inorganic small molecule acid, such as HCl.

Download Full-text