scholarly journals Synthesis, Characterization and Antibacterial of 2,3-Dihydrobenzo Thiazole-2-Carboxylic Acid Complexes with Some Selected Metal Ions

2015 ◽  
Vol 12 (4) ◽  
pp. 785-796
Author(s):  
Baghdad Science Journal
Keyword(s):  
Magnetic Susceptibility ◽  
Biological Activity ◽  
Carboxylic Acid ◽  
Elemental Analysis ◽  
Octahedral Geometry ◽  
Molar Conductivity ◽  
Dichloroacetic Acid ◽  
E Coli ◽  
Bivalent Ions ◽  
Bidentate Mode

A new ligand 2,3-dihydrobenzo [d] thiazole-2-carboxylic acid (L) has been prepared from the reaction of ortho amino phenyl thiol with dichloroacetic acid in mole ratio (1:1). It has been characterized by elemental analysis (C.H.N.), IR, UV- Vis.spectraand 1H, 13C-NMR. A new series complexes of the bivalent ions (Co, Ni, Cu, Pd, Cd, Hg and Pb) and the trivalent (Cr) have been prepared and characterized too. The structural has been established by elemental analysis (C.H.N.), IR, UV-Vis. spectra, molar conductivity, atomic absorption and magnetic susceptibility measurements. The synthesized complexes were prepared in (1:2) ratio correspond to (Co(II), Ni(II), Cu(II), Pd(II), Cd(II), Hg(II) and Pb(II) complexes while in case Cr(III) complex is (1:1) ratio (M:L). ?, Kf for (Cr(III), Co(II), Ni(II) and Cu(II)) were estimated too. The complexes showed characteristics octahedral geometry with the (O,N) ligand coordinated in bidentate mode except with Pd showed square planer. The study of biological activity of ligand (L) and its complexes showed various activities toward Staphylococcus aureusand E. coli.

scholarly journals Synthesis, Characterization and Biological Evaluation of Cr(III), Fe(III), Co(II), Ni(II), Zn(II) and Cd(II) Complexes Using an Azo Dye as Ligand

2020 ◽  
Vol 71 (6) ◽  
pp. 1-8
Author(s):  
Rana Abdulilah Abbas ◽  
Afnan E. Abd-Almonuim ◽  
Amer J. Jarad ◽  
Szidonia-Katalin Tanczos ◽  
Paul Constantin
Keyword(s):  
Magnetic Susceptibility ◽  
Carboxylic Acid ◽  
Atomic Absorption ◽  
Elemental Analysis ◽  
Azo Dye ◽  
Biological Evaluation ◽  
Octahedral Geometry ◽  
Spectroscopic Methods ◽  
Ft Ir ◽  
Azo Ligand

Azo ligand 11-(4-methoxyphenyl azo)-6-oxo-5,6-dihydro-benzo[4,5] imidazo[1,2-c] quinazoline-9-carboixylic acid was derived from 4-methoxyaniline and 6-oxo-5,6-dihydro-benzo[4,5]imidazo[1,2-c]quinazoline-9-carboxylic acid. The presence of azo dye was identified by elemental analysis and spectroscopic methods (FT-IR and UV-Vis). The compounds formed have been identified by using atomic absorption in flame, FT.IR, UV-Vis spectrometry magnetic susceptibility and conductivity. In order to evaluate the antibacterial efficiency of ligand and its complexes used in this study three species of bacteria were also examined. Ligand and its complexes showed good bacterial efficiencies. From the obtained data, an octahedral geometry was proposed for all prepared complexes.

scholarly journals Synthesis, physico-chemical characterization and biological activity of copper(ii) and nickel(ii) complexes with l-benzoyl-2-methylbenzimidazole derivatives

2002 ◽  
pp. 151-157 ◽  
Author(s):  
Sanja Podunavac-Kuzmanovic ◽  
Vukadin Leovac ◽  
Gordana Cetkovic ◽  
Sinisa Markov
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Activity ◽  
Magnetic Susceptibility ◽  
Biological Activity ◽  
Ir Spectra ◽  
Elemental Analysis ◽  
Chemical Characterization ◽  
Molar Conductivity ◽  
Bacillus Sp ◽  
Physico Chemical

Chlorides of copper(II) and nickel(ll) react with 1-benzoyl-2-methylbenzimidazole or 1-(4-chlorobenzoyl)-2-methylbenzimidazole to give complexes of the type [M(L)nCln(H20)?Cln (M = Cu or Ni; L = (1-benzoyl-2-methylbenzimidazole or 1-(4-chlorobenzoyl)-2-methylbenzimidazole; n=O, 1 or 2). The complexes were synthesized and characterized by elemental analysis, molar conductivity magnetic susceptibility measurements and IR spectra. These studies suggest that all the complexes possess an octahedral stereochemistry. The antibacterial activity of (1-benzoyl-2-methylbenzimidazole or 1-(4-chlorobenzoyl)-2-methylbenzimidazole and their complexes was evaluated against Escherichia coli and Bacillus sp.

Synthesis and Characterization of New Ligand Derived from Benzimidazole and It's Complexes with Some Transition Metals

2018 ◽  
Vol 9 (SPL1) ◽  
Author(s):  
Hayder Obaid Jamel ◽  
Najat jawad Al-Obaidi
Keyword(s):  
Magnetic Susceptibility ◽  
Metal Complexes ◽  
Elemental Analysis ◽  
Octahedral Geometry ◽  
Molar Conductivity ◽  
Synthesis And Characterization ◽  
Melting Points ◽  
Tetrahedral Geometry ◽  
Metal Ligand

This work includes preparation of the new ligand 5- (1-benzoimidazol-2-ylamino)-1, 3, 4-thiadiazole-2-thiol (BIATT) by the reaction of 5-Amino-2-thio-1, 3, 4-thiadiazole with 2-mercaptobenzoimidazole by refluxin 1, 4-dioxane as solvent. The metal complexes of the ligand were prepared with metals chlorides of Co (II), Ni (II), Cu (II), Zn (II) and Cd (II) in ethanol as solvent. The ligand (L) and its metal complexes have been characterized by elemental analysis (C.H.N.),IR,1H-NMR and UV­- Vis. spectra, magnetic susceptibility measurements ,molar conductivity, melting points and atomic absorption. The metal-ligand ratio was determined by mole ratio method.The suggested structures for the Co (II), Ni (II) and Cu (II) complexes are octahedral geometry andfor the Zn (II) and Cd (II) complex are tetrahedral geometry.

scholarly journals Synthesis, spectroscopic and biological studies of some metal complexes with orthoamino hydrazo benzene

2011 ◽  
Vol 8 (2) ◽  
pp. 375-387
Author(s):  
Baghdad Science Journal
Keyword(s):  
Staphylococcus Aureus ◽  
Streptococcus Pyogenes ◽  
Elemental Analysis ◽  
Metal Ion ◽  
Octahedral Geometry ◽  
Conductivity Measurements ◽  
E Coli ◽  
Bivalent Ions ◽  
Biological Studies ◽  
Characteristic Behaviour

Ortho amino hydrazobenzene (L) has been prepared from the reaction of ortho amino phenyl thiol with phenyl hyrazan in mole ratio(1:1). It has been characterized by elemental analysis (C, H, N), IR, UV–Vis. The complexes of the bivalent ions (Co, Ni, Cu, Zn, Pd, Cd, Hg and Pb) and the trivalent (Cr) have been prepared and characterized too. The structural have been established by elemental analysis(C,H,N), IR , UV – Vis spectra , conductivity measurements , atomic absorption and magnetic susceptibility . The complexes showed characteristic behaviour of octahedral geometry around the metal ion and the( N,N) ligand coordinated in bidentate modeexcept with pd showed square planer. ? ,kf , ?max for the complexes were estimated too . ? for Co – complex was calculated . The study of biological activity of the ligand (L) and its complexes showed various activity toward Streptococcus pyogenes Staphylococcus aureus , Pseudomonas aeruginosa , E. coli and Candida albicans .

scholarly journals Preparation and Spectral Study of New Complexes of Some Metal Ions with 3,5-Dimethyl-1H-Pyrazol-1-yl Phenyl Methanone

2011 ◽  
Vol 8 (4) ◽  
pp. 1005-1011
Author(s):  
Baghdad Science Journal
Keyword(s):  
Magnetic Susceptibility ◽  
Elemental Analysis ◽  
Room Temperature ◽  
Molar Conductivity ◽  
The Other ◽  
Octahedral Structure ◽  
Tetrahedral Structure ◽  
Visible Spectra ◽  
Ft Ir ◽  
Uv Visible

Many complexes of 3,5-dimethyl-1H-pyrazol-1-yl phenyl methanone with Cr(III), Co(II), Ni(II), Cu(II) and Cd(II) were synthesized and characterized by FT-IR, UV/visible spectra, elemental analysis, room temperature magnetic susceptibility and molar conductivity. Cd(II) complex was expected to have tetrahedral structure while all the other complexes were expected to have an octahedral structure.

scholarly journals Synthesis, Characterization and Biological Activity of Mn2+, Co2+, Ni2+and Cu2+Complexes of Benzoic Acid Ligand

2009 ◽  
Vol 6 (3) ◽  
pp. 743-746 ◽  
Author(s):  
T. Arunachalam ◽  
R. Bhakyaraj ◽  
A. K. Sasi
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antibacterial Activity ◽  
Magnetic Susceptibility ◽  
Biological Activity ◽  
Benzoic Acid ◽  
Conductivity Measurements ◽  
Octahedral Structure ◽  
E Coli ◽  
Acid Ligand

Metal complex of Mn(II), Co(II), Ni(II) and Cu(II) with benzoic acid have been prepared and characterized by physiochemical methods. On the basis of electronic spectra and magnetic susceptibility measurement in conjunction with infrared spectra, six coordinated octahedral structure have been proposed to all the complexes. The benzoic acid and their complexes have been tested for their antibacterial activity against the bacteriaE. coli,Bacillus subtilis,Pseudomonas aeruginosaandStaphylococcus aureus. Further, the non electrolytic nature of all the synthesized complexes was identified from conductivity measurements.

Anhydrous Chromium(III) Carboxylates: Reactions of CrO3 with Carboxylic Acid Anhydrides

1983 ◽  
Vol 38 (1) ◽  
pp. 42-44 ◽  
Author(s):  
Ramesh Kapoor ◽  
Ramneek Sharma
Keyword(s):  
Magnetic Susceptibility ◽  
Carboxylic Acid ◽  
Nmr Spectra ◽  
Octahedral Geometry ◽  
H Nmr ◽  
Chromium Vi ◽  
Carboxylate Groups ◽  
Different Types ◽  
Pure Chromium ◽  
Acid Anhydrides

Abstract Chromium(VI) oxide reacts with excess of carboxylic acid anhydrides [(RCO)2O where R = CH3, C2H5, n-C3H7 and CHCl2] to give pure chromium(III) carboxylates. Their IR and 1H NMR spectra suggest the presence of two different types of carboxylate groups. Magnetic susceptibility and absorption spectra favour an octahedral geometry around Cr.

scholarly journals Synthesis, Characterization, and Biological Activity of Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) Complexes of N-Thiophenoyl-N′-Phenylthiocarbohydrazide

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
M. Yadav ◽  
Debasis Behera
Keyword(s):  
Magnetic Susceptibility ◽  
Biological Activity ◽  
Octahedral Geometry ◽  
Spectral Studies ◽  
Planar Geometry ◽  
Tetradentate Ligand ◽  
Tetrahedral Geometry ◽  
Square Planar ◽  
Infrared Spectral ◽  
Bacteria And Fungi

Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II) complex of N-thiophenoyl -N′-phenylthiocarbohydrazide (H2TPTH) have been synthesized and characterized by elemental analysis, magnetic susceptibility measurements, infrared, NMR, electronic, and ESR spectral studies. The complexes were found to have compositions [Mn(H TPTH)2], [Co(TPTH) (H2O)2], [Ni(TPTH) (H2O)2], [Cu(TPTH)], [Zn(H TPTH)], [Cd(H TPTH)2], and [Fe(H TPTH)2(EtOH)]. The magnetic and electronic spectral studies suggest square planar geometry for [Cu(TPTH)], tetrahedral geometry for [Zn(TPTH)] and [Cd(H TPTH)2], and octahedral geometry for rest of the complexes. The infrared spectral studies of the 1 : 1 deprotonated complexes suggest bonding through enolic oxygen, thiolato sulfur, and both the hydrazinic nitrogens. Thus, H2TPTH acts as a binegative tetradentate ligand. H2TPTH and its metal complexes have been screened against several bacteria and fungi.

scholarly journals Synthesis and Characterization of Some New [RR′SeL] Complexes (L = Macrocyclic Ligand): A Photoelectron Spectroscopic Study (Part-II)

2019 ◽  
Vol 31 (12) ◽  
pp. 2753-2758
Author(s):  
Uday Singh Patel ◽  
Ranjeet Singh Chauhan ◽  
Sandeep Singh ◽  
Ramakant ◽  
Ashish Rajak ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Elemental Analysis ◽  
Macrocyclic Ligand ◽  
Octahedral Geometry ◽  
Molar Conductivity ◽  
Macrocyclic Ligands ◽  
Synthesis And Characterization

Forty eight complexes of type [RR′SeL] (where R = R′ = CH3; R = R′ = n-C4H9; R = R′ = n-C8H17; R = R′ = i-C3H7; R = R′ = C6H5; R = C6H5, R′ = C2H5; R = C6H5, R′ = CH3 and R = C6H5, R′ = CH2Cl; L = newly prepared macrocyclic ligands) have been synthesized and characterized by elemental analysis, molar conductivity, IR and XPS data. An octahedral geometry was established for all these prepared complexes.

scholarly journals Synthesis and characterization some complexes of azo dye of pyrimidyniyl and evaluating their biological activity

2019 ◽  
Vol 24 (3) ◽  
Author(s):  
Yareeb Jwad Sahar ◽  
Hasan Shamran Mohammed
Keyword(s):  
Biological Activity ◽  
Cell Line ◽  
Azo Dye ◽  
Mass Spectra ◽  
Molar Conductivity ◽  
Synthesis And Characterization ◽  
E Coli ◽  
Mcf 7

The present study involves fabrication a heterocyclic azo dye:  2-[4-diamino-3-benzaldehyde diazenyl]pyrimidine (L). The dye was synthesized by reacting 2-aminopyrimidine with 4-diaminobenzaldehyde (in situ). The complexes of ([Ag(L)(H2O)]NO3, [Cd(L)2]Cl2 and [Hg(L)2]Cl2) dyes were prepared and characterized by elemental analysis; mass spectra, molar conductivity and spectroscopies of infrared and UV-Vis. The L dye ligand is tridentate. The Cd(II) and Hg(II) are octahedral with mole ratio Metal:Ligand equal to 1:2 while Ag(I) complex is tetrahedral with mole ratio Metal:Ligand equal to 1:1. The molar conductivity indicates that Ag(I) complex is electrolyte (1:1) and Cd(II) and (II) are electrolytes with ratio 2:1. The synthesized ligand (L) and its complexes showed interest biological activity against E-coli and Staph-aureus bacteria and Aspergillus Niger and Pinicillium.sp fungi. The anti-activity of [Ag(L)(H2O)]NO3 complex against MCF-7 cell line and its cytotoxicity against WRL cell line were interesting in vitro.

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