scholarly journals Preparation and Characterization of Biacetyl Monoxime Hydrazone Salicylidene Complexes of Lanthanoid (III) Ions

2021 ◽  
pp. 33-39
Author(s):  
Sharad Sankhe ◽  
Sainath Bhavsar
Keyword(s):  
Magnetic Properties ◽  
Elemental Analysis ◽  
Electronic Spectra ◽  
Molar Conductance ◽  
Azomethine Nitrogen

The 1:3 complexes of lanthanoid (III) ions as Nd(III), Sm(III), Tb(III) and La(III) with biacetyl monoxime hydrazone salicyalidene have been prepared and characterized by elemental analysis, IR, PMR, electronic spectra, molar conductance and magnetic properties. All these complexes  of  Ln(III)  complexes  are  found  to  be  unique  in  infrared  and  solubility  to  the methanol, chloroform, DMF, DMSO solvents. The results show that the biacetyl monoxime hydrazone salicyalidene ligand acts as a  bidentate monobasic donor, coordinating through the azomethine nitrogen and deprotonated oximino proton.

scholarly journals Transition metal complexes with thiosemicarbazide-based ligands. Part 60. Reactions of copper(II) bromide with pyridoxal S-methylisothiosemicarbazone (PLITSC). Crystal structure of [Cu(PLITSC−H)H2O]Br•H2O

2014 ◽  
Vol 79 (3) ◽  
pp. 291-302 ◽  
Author(s):  
Vukadin Leovac ◽  
Ljiljana Vojinovic-Jesic ◽  
Sonja Ivkovic ◽  
Marko Rodic ◽  
Ljiljana Jovanovic ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Thermal Analysis ◽  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Elemental Analysis ◽  
Structural Characterization ◽  
Electronic Spectra ◽  
Square Planar

The synthesis and structural characterization of a square-planar copper(II) complex with pyridoxal S-methylisothiosemicarbazone (PLITSC) of the formula [Cu(PLITSC?H)H2O]Br?H2O (1) as the first Cu(II) complex with monoanionic form of this ligand were described. Complex 1 together with two previously synthesized complexes [Cu(PLITSC)Br2] (2) and [Cu(PLITSC)Br(MeOH)]Br (3) were characterized by elemental analysis, IR and electronic spectra and also by the methods of thermal analysis, conductometry and magnetochemistry.

scholarly journals Antitumor Activity of 6-(cyclohexylamino)-1,3-dimethyl-5(2-pyridyl)furo[2,3-d]pyrimidine-2,4(1H,3H)-dione and Its Ti(IV), Zn(II), Fe(III), and Pd(II) Complexes on K562 and Jurkat Cell Lines

2008 ◽  
Vol 2008 ◽  
pp. 1-5 ◽  
Author(s):  
Fahmideh Shabani ◽  
Shahriar Ghammamy ◽  
Khayroallah Mehrani ◽  
Mohammad Bagher Teimouri ◽  
Masoud Soleimani ◽  
...  
Keyword(s):  
Antitumor Activity ◽  
Elemental Analysis ◽  
Analysis Data ◽  
Molar Conductance ◽  
Carcinoma Cells ◽  
Elemental Analysis Data ◽  
Human T Lymphocyte ◽  
Ft Ir ◽  
Uv Visible

(6-(cyclohexylamino)-1,3-dimethyl-5(2-pyridyl)furo[2,3-d]pyrimidine-2,4(1H,3H)-dione) abbreviated as CDP was synthesized and characterized. Ti(IV), Zn(II), Fe(III), and Pd(II) metal complexes of this ligand are prepared by the reaction of salts of Ti(IV), Zn(II), Fe(III), and Pd(II) with CDP in acetonitrile. Characterization of the ligand and its complexes was made by microanalyses, FT-IR,1HNMR,13CNMR, and UV-Visible spectroscopy. All complexes were characterized by several techniques using elemental analysis (C, H, N), FT-IR, electronic spectra, and molar conductance measurements. The elemental analysis data suggest the stoichiometry to be 1:1 [M:L] ratio formation. The molar conductance measurements reveal the presence of 1:1 electrolytic nature complexes. These new complexes showed excellent antitumor activity against two kinds of cancer cells that are K562 (human chronic myeloid leukemia) cells and Jurkat (human T lymphocyte carcinoma) cells.

scholarly journals Synthesis and Spectral Characterization of Mn(II) and Co(II) Complexes with Tetradentate Macrocyclic Ligand

2021 ◽  
Vol 33 (9) ◽  
pp. 2207-2211
Author(s):  
Usha Bansal ◽  
Samta Goyal ◽  
Swati Agrawal
Keyword(s):  
Metal Complexes ◽  
Infrared Spectra ◽  
Elemental Analysis ◽  
Magnetic Moment ◽  
Macrocyclic Ligand ◽  
Molar Conductance ◽  
Octahedral Geometry ◽  
Metal Salts ◽  
Spectral Studies

Manganese(II) and cobalt(II) complexes were synthesized with [N4] tetradentate macrocyclic ligand using different metal salts i.e. MnCl2, Mn(NO3)2, CoCl2 and Co(NCS)2. The ligand was prepared by condensation of glyoxal and carbahydrazide. All these were characterized by elemental analysis, molar conductance measurements, magnetic moment, IR, mass, electronic and EPR spectral studies. Elemental analysis indicates that the complexes have composition MLX2 where (X = Cl–, NO3 –,NCS–). All the complexes were found to be non-electrolytic in nature so can be formulated as [MLX2]. Infrared spectra of metal complexes suggest that the ligand behaves as tetradentate. On the basis of magnetic moment, electronic and EPR spectral data, all the metal complexes were found to be high spin with octahedral geometry.

scholarly journals Synthesis, characterization and antimicrobial studies of Mn(II) complexes of acetylthiophene and acetyl furan Schiff base derivatives

2020 ◽  
Vol 12 (1) ◽  
pp. 251-258
Author(s):  
S. Isyaku ◽  
H.N. Aliyu ◽  
E.C. Ozoro ◽  
T. Abubakar
Keyword(s):  
Magnetic Susceptibility ◽  
Schiff Base ◽  
Schiff Bases ◽  
Elemental Analysis ◽  
Salmonella Typhi ◽  
Decomposition Temperature ◽  
Molar Conductance ◽  
Molar Ratio ◽  
Azomethine Nitrogen ◽  
Antimicrobial Studies

Manganese(II) complexes of Schiff bases; 2-acetylthiophene-4‑phenylthiosemi-carbazone (AT-PTSC) and 2-furylmethylketone-4-phenylthiosemi-carbazone  (AF‑PTSC) derived from condensation of 2-acetylthiophene and 2-furylmethylketone (2-acetylfuran) each with 4-phenylthiosemicarbazide in (1:1 molar ratio) ethanol, have been synthesized. The Schiff bases and the Mn(II) complexes were characterized on the basis of melting point/decomposition temperature, solubility, magnetic susceptibility, infrared spectra, molar conductance measurements,  elemental and gravimetric  analyses. The Mn(II) complexes show moderate values of decomposition temperatures. The Schiff bases and the complexes were soluble in some common organic solvents. Infrared spectral data of the Schiff bases and their complexes, indicate coordination of the Schiff bases to the metal(II) ion via azomethine nitrogen. The effective magnetic moment of the Mn(II) complexes suggested an octahedral geometry. The molar conductance values of the complexes show that the complexes are electrolytes. The results of the elemental analysis of the ligands and their complexes are in good agreement with the calculated values, suggesting a 1:2 (metal-ligand) ratio. Antimicrobial screenings of the ligands and their complexes were conducted against gram-positive (Staphylococcus aureus,) and two gram-negative (Salmonella typhi, and Escherichia coli) bacteria specie. Also three fungi mainly (Candida albicans, Mucus indicus and Aspergillus flavus) were tested. The results showed that both the ligands and the complexes are active against the bacteria and the fungi specie. Keywords: Ligand, Schiff base, 4-phenylthiosemicarbazide, 2-acetylthiophene, 2-acetylfuran molar conductivity, magnetic susceptibility, elemental analysis.

scholarly journals Synthesis, characterization of Novel β-diketone Ni, Fe, Cr Complexes and study of its Antifungal, Antibacterial, Antioxidant and Anti-Inflammatory Activity.

2021 ◽  
Vol 37 (2) ◽  
pp. 413-418
Author(s):  
Sachin Govind Bibave ◽  
S. J. Takate ◽  
A.E. Athare
Keyword(s):  
Magnetic Properties ◽  
Metal Complexes ◽  
Elemental Analysis ◽  
Inflammatory Activity ◽  
Metal Nitrates ◽  
Anti Inflammatory ◽  
Anti Fungal

Theβ-dike toneis synthesizedvia the named Baker-Venkataraman. In currenttask, β-dike tone ligand mixed with different metal nitrates and form different metal complexes such as Ni(II), Fe(III), Cr(III). Ligand gives tautomerism, this tautomerism process was examined with the help ofFTIR.Because of enol assist as ligand in the metal complexes preparation. The preparedmetal complexearede scribed by various techniques like elemental analysis, FTIR, DTA, TGA, magnetic properties and molar conductivities. Different properties of complexes are studied such as antioxidant, antibacterial, anti-inflammatory and anti fungal properties.

scholarly journals Synthesis and Characterization of Metal Tribromoacetates and Their Alkali Metal Derivatives

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Jugal Kishore Puri ◽  
Rajni Chhoker
Keyword(s):  
Alkali Metal ◽  
Elemental Analysis ◽  
Molar Conductance ◽  
Synthesis And Characterization ◽  
Infrared Reflectance ◽  
Metal Derivatives ◽  
Thermogravimetric Studies

Complexes of composition Fe2Cl2(O2CCBr3)4, Fe2Cl(O2CCBr3)5, Fe (O2CCBr3)3, [(Me4N)2][Fe (O2CCBr3)4], K[Fe (O2CCBr3)4], Rb[Fe (O2CCBr3)4], Cs[Fe (O2CCBr3)4], [(Me4N)2][Co(O2CCBr3)4], [(Me4N)2][Mn(O2CCBr3)4], [(Me4N)2][Cu(O2CCBr3)4], and [(Me4N)2][Ni(O2CCBr3)4] have been prepared by metathetical reactions using nitromethane as solvent. All these compounds have been characterized by elemental analysis, molar conductance, infrared, reflectance and thermogravimetric studies.

SYNTHESIS AND CHARACTERIZATION OF TI (III), V (III),VO (IV), MOO (V),FE (II) AND FE (III) COMPLEXES OF BENZIL- 2,4-DINITROPHENYL HYDRAZONE P-BROMO ANILINE

2016 ◽  
Vol 2 (4) ◽  
pp. 177
Author(s):  
Raj Kamal Rastogi ◽  
Sonu Sharma ◽  
Gulshan Rastogi ◽  
Alok K. Singh
Keyword(s):  
Elemental Analysis ◽  
Magnetic Measurement ◽  
Measurement Data ◽  
Molar Conductance ◽  
Octahedral Geometry ◽  
Synthesis And Characterization ◽  
Distorted Octahedral Geometry ◽  
Distorted Octahedral ◽  
Uv Visible

The complexes of Benzil-2, 4-dinitrophenyl hydrazone-p- bromo aniline with Ti(III),V(III), VO(IV),MoO (V), Fe(II), Fe(III) have synthesized and characterized by elemental analysis, magnetic measurement data, molar conductance, TGA,UV-visible and IR spectra data. The complexes of Ti (III), V (III), Fe (II) and Fe (III) have octahedral geometry while VO (IV) and MoO(V) have distorted octahedral geometry due to the presence of M=O moiety.

scholarly journals Synthesis and spectroscopic characterization of some lanthanide(III) nitrate complexes of 3-[3-carboxyethyl-4,5- dimethylthiophene-2-yl)azo]pent-2,4-dione

2011 ◽  
Vol 76 (2) ◽  
pp. 249-261 ◽  
Author(s):  
Janardhanan Athira ◽  
Yesodharan Sindhu ◽  
Susamma Sujamol ◽  
Kochukittan Mohanan
Keyword(s):  
Elemental Analysis ◽  
Metal Ion ◽  
Spectroscopic Characterization ◽  
Molar Conductance ◽  
Spectral Studies ◽  
Structural Form ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nitrate Complexes

3-[3-Carboxyethyl-4,5-dimethylthiophene-2-yl)azo]pent-2,4-dione was synthesized by coupling diazotized 2-amino-3-carboxyethyl- 4,5-dimethylthiophene with acetylacetone. Based on various spectral studies and elemental analysis, an intramolecularly hydrogen bonded azoenol structural form was assigned for the ligand. This ligand is versatile in forming a series of lanthanide(III) complexes viz, lanthanum(III), cerium(III), praseodymium(III), neodymium(III), samarium(III) and gadolinium(III), which were characterized through various spectral studies, elemental analysis, magnetic susceptibility measurements, molar conductance and thermal analysis. The spectral data revealed that the ligand acted as a neutral tridentate, coordinating to the metal ion through one of the azo nitrogen atoms, the ester carbonyl and the enolic oxygen of the acetylacetone moiety, without deprotonation. Molar conductance values adequately supported their non-electrolytic nature. The ligand and lanthanum(III) complexes were subjected to X-ray diffraction studies. In addition, the lanthanum(III) complex underwent a facile transesterification reaction on refluxing with methanol for a long period. The thermal behavior of the lanthanum(III) complex was also examined.

In vitro antifungal and antibacterial properties of thiodiamine transition metal complexes

2009 ◽  
Vol 63 (5) ◽  
Author(s):  
Ajay Mishra ◽  
Shivani Mishra ◽  
Narender Kaushik
Keyword(s):  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Elemental Analysis ◽  
Binding Sites ◽  
Antibacterial Properties ◽  
Spectroscopic Studies ◽  
Molar Conductance ◽  
Azomethine Nitrogen ◽  
Biological Studies

AbstractSynthesis, characterization and biological studies of some thiodiamine metal complexes are described. Cobalt(II) and copper(II) complexes of type [Cu(L)2Cl2] and [Co(L)2SO4], where L = (cyclohexyl-N-thio)-1,2-ethylenediamine (L1) and (cyclohexyl-N-thio)-1,3-propanediamine (L2), were synthesized. The synthesized copper and cobalt thiodiamine complexes were characterized by elemental analysis, IR, mass, UV-VIS and 1H NMR spectroscopic studies. Thiodiamines coordinate as a bidentate N-S ligand. The binding sites are azomethine nitrogen and thioamide sulfur. Molar conductance values in dimethylsulfoxide indicate non-electrolyte nature of the complexes. In vitro-antimicrobial screening shows promising results against both bacterial and fungal strains.

scholarly journals Synthesis and Characterization of FeІІ , CoІІ , NiІІ , CuІІ and ZnІІ Complexes With Dithiocarbamate and N-Donor Ligands

2017 ◽  
Vol 30 (3) ◽  
pp. 130
Author(s):  
Mohammed Jassim Mohammed ◽  
Asmaa Basim Ali
Keyword(s):  
Electronic Spectra ◽  
Metal Content ◽  
Chemical Characterization ◽  
Molar Conductance ◽  
Octahedral Geometry ◽  
Donor Ligands ◽  
Synthesis And Characterization ◽  
Tetrahedral Geometry ◽  
Physico Chemical

New complexes of first series of transition metals with P-amino benzene dithiocarbamate of the general formula [M(PABdtc)2] and [ M(PABdtc)2(L)n] M=Fe( ІІ ),Co( ІІ ),Ni( ІІ ) ,Cu(ІІ) and Zn (ІІ). PABdtc = Paraamino benzene dithiocarbamate ,n=2 when  L= Py,ɣ-Pic,iso qunoline ,3,5lutidine  n=1when L=1,10-phenanthroline, en, 2,-2bipy.and the type(R)4N[Ni(PABdtc)3] R= methyl, ethyl are prepared. Physico chemical characterization of these complexes was applied  using magnetic susceptibility measurements, molar conductance , Infrared and electronic spectra, Metal content measurements, molar conductance indicate complexes of the type [M(PABdtc)2] and [M(PABdtc)2(L)n] are non-electrolyte while complexes of the type (R)4N[Ni(PABdtc)3] are 1:1 electrolyte. Magnetic moment and electronic spectra indicate that the complexes of the type [M(PABdtc)2] are tetrahedral geometry while the complexes of the type [M(PABdtc)2(L)n] and (R)4N[Ni(PABdtc)3] have octahedral geometry

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