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 and Characterization of 1-phenyl-3-methyl-4-stearoylpyrazol-5-one and Its Lanthanum(III) and Tungsten(VI) Complexes

2020 ◽  
pp. 140-151
Author(s):  
A. I. C. Ehirim ◽  
C. K. Enenebeaku ◽  
C. Asimole ◽  
M. O. C. Ogwuegbu ◽  
E. N. O. Ejike
Keyword(s):  
Elemental Analysis ◽  
13C Nmr ◽  
Synthesis And Characterization ◽  
Conductivity Measurements ◽  
Melting Points ◽  
1H And 13C Nmr ◽  
Solubility Profile ◽  
Uv Visible ◽  
Metal Ligand

The ligand, 1-phenyl-3-methyl-4-stearoylpyrazol-5-one (HSPy), and its La(III) and W(VI) complexes were synthesized and characterized spectroscopically using elemental analysis, UV-visible, IR, 1H and 13C NMR. Physical properties such as colour, melting points, conductivity measurements and solubility profile were also investigated. La(III) and W(VI) reacted with the ligand in the metal-ligand mole ratios of 1:3 and 1:2 to form neutral complexes of diaquo-trischelate La(SPy)3.2H2O and dioxoaquo-bischelate, WO2(SPy)2.H2O respectively.

scholarly journals Synthesis and characterization of new mixed ligand complexes of Zn (II) and Hg (II) with dithiocarbamate and phosphines

2020 ◽  
Vol 25 (1) ◽  
pp. 59
Author(s):  
Ola M. Abdul Kareem ◽  
Hayfaa M. Jirjes
Keyword(s):  
Octahedral Geometry ◽  
Molar Conductivity ◽  
Mixed Ligand ◽  
Molar Ratio ◽  
Synthesis And Characterization ◽  
Diphosphine Ligands ◽  
Solvent Treatment ◽  
Mercury Acetate ◽  
Metal Ligand

Complexes of the type [M (Et2DTC)2]2 [M= Zn(1) or Hg(2)]  were prepared from the reaction of mercury acetate or zinc acetate with sodium diethyldithiocarbamate trihydrate (NaEt2DTC.3H2O) in (1:2) molar ratio (metal: ligand) in mixture of MeOH and H2O as a solvent. Treatment equal molar of  (1) or (2) with diphosphine ligands {where diphos: bis (diphenylphosphino) methane (dppm), 1,2-bis (diphenylphosphino) ethane (dppe)  and  1,3-Bis (diphenylphosphino) propane (dppp)} afforded complexes of the type [Zn(Et2DTC)2(dppeO)] (3); [Zn(Et2DTC)2(dpppS)] (4a); [Zn(Et2DTC)2(dppp)] (4b); [Hg(Et2DTC)2(dppm)] (6a); [Hg(Et2DTC)2(µ-dppm)]2(6b); [Hg(Et2DTC)2(dppe)](7) and [Hg(Et2DTC)2(dppp)](8), or with two moles of triphenylphosphine (PPh3) afforded a complexes of the type [M(κ1-Et2DTC)2(PPh3)2] (5a, 9a) and [M(κ2-Et2DTC)2(PPh3)2] (5b, 9b) {M= Zn, Hg}. The prepared complexes were fully characterized by different technics such as IR, NMR (1H and 31P) spectroscopy, elemental analysis, and molar conductivity. Characterization data showed that the (Et2DTC) ligand in all of the prepared complexes was coordinated with metal through the sulfur atoms of CSS- group. The geometry of the complexes (1-9) were tetrahedral around the Zn(II) and Hg(II) ions, except isomers 5b and 9b are octahedral geometry. .    http://dx.doi.org/10.25130/tjps.25.2020.011

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 Preparation and Characterization of Some Transition Metal Complexes with ( N ,S ,O) New Schiff Base Ligand

2014 ◽  
Vol 11 (1) ◽  
pp. 158-165
Author(s):  
Baghdad Science Journal
Keyword(s):  
Magnetic Susceptibility ◽  
Schiff Base ◽  
Spectral Data ◽  
Transition Metal Complexes ◽  
Elemental Analysis ◽  
Schiff Base Ligand ◽  
Analysis Data ◽  
Octahedral Geometry ◽  
Metal Ligand

The New Schiff base ligand 4,4'-[(1,1'-Biphenyl)-4,4'-diyl,bis-(azo)-bis-[2-Salicylidene thiosemicarbazide](HL)(BASTSC)and its complexes with Co(II), Ni(II), and Cu(II) were prepared and characterized by elemental analysis, electronic, FTIR, magnetic susceptibility measurements. The analytical and spectral data showed, the stiochiometry of the complexes to be 1:1 (metal: ligand). FTIR spectral data showed that the ligand behaves as dibasic hexadentate molecule with (N, S, O) donor sequence towards metal ions. The octahedral geometry for Co(II), Ni(II), and Cu(II) complexes and non electrolyte behavior was suggested according to the analysis data.

scholarly journals Preparation and Characterization of Some Metal Complexes with Heterocyclic Azo Ligand (4-SuBAI)

2015 ◽  
Vol 12 (3) ◽  
pp. 503-515 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Metal Complexes ◽  
Elemental Analysis ◽  
Analytical Data ◽  
Molar Conductance ◽  
Octahedral Geometry ◽  
Chelate Complexes ◽  
Ft Ir ◽  
Metal Ligand ◽  
Azo Ligand

The preparation and characterization of the Cu (II), Co(II), Ni(II), Zn(II), Cd(II), and Hg(II) metal complexes of heterocyclic azo ligand 2-[(4`-sulphamide phenyl) azo] -4,5-diphenyl imidazole (4-SuBAI) have been studied by elemental analysis, FT-IR and UV-Vis Spectroscopic, magnetic moment and molar conductance methods. The analytical data showed that all chelate complexes were prepared with (metal-ligand) ratio of (1:2). The general formula of these complexes was [ML2X2]. nH2O [were L=2-[(4`-sulphamide phenyl) azo]-4,5-diphenyl imidazole and X=Cl, and the octahedral geometry were suggested for these complexes .

Synthesis and Characterization of Some Transition Metal Complexes of Arylidene Salicyloyl and Benzoyl Hydrazones

1984 ◽  
Vol 39 (6) ◽  
pp. 812-816 ◽  
Author(s):  
Y. M. Temerk ◽  
S. A. Ibrahim ◽  
M. M. Kamal
Keyword(s):  
Transition Metal Complexes ◽  
Metal Ion ◽  
Octahedral Geometry ◽  
Molar Conductivity ◽  
Synthesis And Characterization ◽  
Distorted Octahedral Geometry ◽  
Bidentate Ligands ◽  
Conductivity Measurements ◽  
Distorted Octahedral

AbstractComplexes of arylidene salicyloyl- and benzoyl-hydrazones with the 3d metal ions, Cr(III), Mn(II), Fe(III), Co(II), Ni(II) and Cu(II), have been prepared using 2:1 ligand to metal ion ratio. Characterization of the isolated solids was accomplished by IR and electronic spectra, elemental analysis, and molar conductivity measurements. It is concluded that the two Schiff bases function as neutral bidentate ligands and the complexes formed assume a distorted octahedral geometry.

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 and Characterization of Cu(II), Ni(II) and Co(II) Based Schiff Base Complexes

2014 ◽  
Vol 31 ◽  
pp. 51-55
Author(s):  
Ankita A. Bhalu ◽  
Kalpesh Vilapara ◽  
Minaxi Maru ◽  
Manish Shah
Keyword(s):  
Schiff Base ◽  
Metal Complexes ◽  
Elemental Analysis ◽  
Uv Spectroscopy ◽  
Schiff Base Complexes ◽  
Synthesis And Characterization ◽  
Ft Ir

N-(3-Bromo-4-hydroxy-5-methoxybenzylidene)-4-Bromobenzenamine was synthesized. This was further used to synthesize Co(II), Ni(II) and Co(II) based metal complexes and characterized by FT-IR, Elemental analysis, ESI Mass and UV spectroscopy.

Synthesis and Characterization of a Three-dimensional Porous Compound: [Cu(H2O)6][{Cu(H2O)2}2{Cu(H2O)4H4W12O42}] · 12H2O

2008 ◽  
Vol 63 (2) ◽  
pp. 187-192 ◽  
Author(s):  
Chun-jing Zhang ◽  
Ya-guang Chen ◽  
Dong-mei Shi ◽  
Hai-jun Pang
Keyword(s):  
Aqueous Solution ◽  
Magnetic Susceptibility ◽  
Elemental Analysis ◽  
3D Structure ◽  
Three Dimensional ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Vis Spectroscopy

A novel transition metal polyoxotungstate, [Cu(H2O)6][{Cu(H2O)2}2{Cu(H2O)4H4W12O42}] · 12H2O (1), has been synthesized in aqueous solution and characterized by single-crystal X-ray diffraction, elemental analysis, IR and UV/vis spectroscopy, and TG analysis. The paradodecatungstate anions [H2W12O42]10− are linked by CuO6 octahedra, forming a three-dimensional (3D) structure. The magnetic susceptibility of compound 1 in the temperature range 2 - 300 K shows the presence of antiferromagnetic interactions within the uniform Cu2・ ・ ・Cu3 chains

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.

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