scholarly journals Synthesis and Characterization of (Fe(II),Co(II),Ni(II) and Cu(II)) Complexes with Schiff Base derived from [benzoyl hydrazine] with [benzyl mono oxime]

2009 ◽  
Vol 6 (4) ◽  
pp. 748-756
Author(s):  
Baghdad Science Journal
Keyword(s):  
Magnetic Susceptibility ◽  
Glacial Acetic Acid ◽  
Molecular Structures ◽  
Tridentate Ligand ◽  
Synthesis And Characterization ◽  
Spectroscopic Methods ◽  
Conductivity Measurements ◽  
Benzoyl Hydrazine ◽  
Metal Ligand

The reaction of [Benzoyl hydrazine] with [Diphenyl mono oxime] and Glacial acetic acid was carried out in methanol gave a new tridentate ligand [Benzoic acid (2-hydroxyimino- 1, 2-diphyneylethylidene) - hydrazide]. This ligand was reacted with some metal ions (Fe(II), Co(II), Ni(II), and Cu(II)) in methanol with (1:1) metal : ligand ratio to give a series of new complexes of the general formula [M(L)Cl2.H2O], where M= Fe(11), Co(11), Ni(11) and Cu(11). All compounds were characterized by spectroscopic methods (I.R, UV-Vis), elemental microanalysis (C.H.N), atomic absorption, magnetic susceptibility, and conductivity measurements. From the obtained data the proposed molecular structures were suggested for the complexes of Fe (II), Co (II), Ni (II) and Cu (II) are of geometric octahedral.

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 Some New Metals Complexes of [N-(4-Nitrobenzoyl Amino)-Thioxomethyl] Phenylalanine

2016 ◽  
Vol 13 (1) ◽  
pp. 113-121
Author(s):  
Baghdad Science Journal
Keyword(s):  
Molecular Structure ◽  
Magnetic Susceptibility ◽  
Palladium Complexes ◽  
Synthesis And Characterization ◽  
Conductivity Measurements ◽  
Tetrahedral Geometry ◽  
Visible Spectra ◽  
Ft Ir ◽  
Uv Visible

A new ligand [N-(4-nitrobenzoylamino)-thioxomethyl] phenylalanine is synthesized by reaction of 4-nitrobenzoyl isothiocyanate with phenylalanine (1:1). It is characterized by micro elemental analysis (C.H.N.S.), FT-IR, (UV-Vis) and 1H and 13CNMR spectra. Some metals ions complexes of this ligand were prepared and characterized by FT-IR, UV-Visible spectra, conductivity measurements, magnetic susceptibility and atomic absorption. From results obtained, the following formula [M(NBA)2] where M2+ = Mn, Co, Ni, Cu, Zn, Pd, Cd and Hg, the proposed molecular structure for these complexes as tetrahedral geometry, except copper and palladium complexes are have square planer geometry.

scholarly journals Synthesis and Characterization of New Metal Complexes of α-Aminonitriles Derived from P- Toluidine and Aromatic Aldehydes

2010 ◽  
Vol 7 (3) ◽  
pp. 1214-1225
Author(s):  
Baghdad Science Journal
Keyword(s):  
Electrical Conductivity ◽  
Magnetic Susceptibility ◽  
Transition Metal ◽  
Metal Complexes ◽  
Aromatic Aldehydes ◽  
Transition Metal Ions ◽  
Synthesis And Characterization ◽  
Conductivity Measurements ◽  
Phenyl Acetonitrile

New metal complexes of some transition metal ions Co(II), Cu(II) , Cd(II) and Zn(II) were prepared by their reaction with previously prepared ligands HLI= (P-methyl anilino) phenyl acetonitrile and HLII = (P-methyl anilino) –P– chloro phenyl acetonitrile . The two ligands were prepared by Strecker’s procedure which includ the reaction of p- toluidine with benzaldehyde and P- chlorobenzaldehyde respectively. Structures were proposed depending on atomic absorption , i.r. and u.v.visible spectra in addition to magnetic susceptibility and electrical conductivity measurements.

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 some Mixed Ligand Complexes Containing (8-hydroxyquinoline) and (2 - picoline) with some Metal Ions

2013 ◽  
Vol 10 (2) ◽  
pp. 396-404
Author(s):  
Baghdad Science Journal
Keyword(s):  
Magnetic Susceptibility ◽  
Metal Ions ◽  
Molar Conductivity ◽  
Mixed Ligand ◽  
Synthesis And Characterization ◽  
Conductivity Measurements ◽  
Visible Spectroscopy ◽  
Ft Ir ◽  
Uv Visible

Complexes of some metal ions ( Mn(I? ) , Co(??) , Ni(??) ,Cu (??) , Zn(I?) , Cd (??) , and Hg(??) ) with 8-hydroxyquinoline (Oxine) and 2- Picoline (2-pic ) have been synthesized and characterized on the basis of their FT-IR. and Uv-visible spectroscopy ,atomic absorption molar conductivity measurements and magnetic susceptibility ,from the results obtained the following general formula has been given for prepared complexes [M (oxine)2 (2-pic)2]where M = M(??) = Mn , Co , Ni , Cu , Zn , Cd , Hg(oxine)- = ionic ligand 8-hydroxyquinolin (oxinato)(2- pic) = 2- picoline

scholarly journals Synthesis and Characterization of Novel Biginelli Dihydropyrimidinone Derivatives Containing Imidazole Moiety

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Mashooq Ahmad Bhat ◽  
Mohamed A. Al-Omar ◽  
Ahmed M. Naglah ◽  
Atef Kalmouch ◽  
Abdullah Al-Dhfyan
Keyword(s):  
Acetic Acid ◽  
Elemental Analysis ◽  
Efficient Method ◽  
Glacial Acetic Acid ◽  
Solvent Free ◽  
Synthesis And Characterization ◽  
Spectroscopic Methods ◽  
Free Condition ◽  
Solvent Free Condition

Enaminone, (2E)-1-[4-(1H-imidazol-1-yl) phenyl]-4-methylpent-2-en-1-one (II) was synthesized by refluxing 1-[4-(1H-imidazol-1-yl) phenyl] ethan-1-one (I) with dimethylforamide dimethylacetal (DMF–DMA) under solvent-free condition for 12 hours. Finally, the dihydropyrimidinone derivatives containing imidazole moiety (1–15) were obtained by reacting enaminone, (2E)-1-[4-(1H-imidazol-1-yl) phenyl]-4-methylpent-2-en-1-one (II) with urea and different substituted benzaldehydes in the presence of glacial acetic acid. Dihydropyrimidinone derivatives containing imidazole moiety were synthesized in excellent yield by means of a simple and efficient method. All the compounds were confirmed by elemental analysis. The structures of all the compounds were confirmed by modern spectroscopic methods.

scholarly journals Synthesis and Characterization of [2-(carboxy methylene-amino)-phenyl imino] acetic acid (L) and its some metal complexes

2013 ◽  
Vol 10 (3) ◽  
pp. 547-560
Author(s):  
Baghdad Science Journal
Keyword(s):  
Acetic Acid ◽  
Metal Complexes ◽  
Metal Content ◽  
Magnetic Moments ◽  
Synthesis And Characterization ◽  
Spectroscopic Methods ◽  
Conductivity Measurements ◽  
Geometrical Structures ◽  
Square Planar

New Schiff base, namely [2-(carboxy methylene-amino)-phenyl imino] acetic acid (L) and its some metal complexes [LCo.2H2O], [LNi.2H2O], [LCu].3H2O, [LCd.2H2O], [LHg.2H2O] and [LPb.2H2O], were reported and characterized by elemental analysis, metal content, spectroscopic methods, magnetic moments and conductivity measurements, it is found that the geometrical structures of these complexes are octahedral [Co(II), Ni(II), Cd(II), Hg(II), Pb(II) and square planar Cu(II).The complexes have been found to posses 1:1 (M:L) stoichiometry

scholarly journals Synthesis and Characterization of Some Metal Complexes of [4-Methoxy-N-(pyrimidine-2-ylcarbamothioyl)benzamide]

2017 ◽  
Vol 14 (4) ◽  
pp. 765-772
Author(s):  
Baghdad Science Journal
Keyword(s):  
Magnetic Susceptibility ◽  
Metal Complexes ◽  
Atomic Absorption ◽  
Geometrical Structure ◽  
Synthesis And Characterization ◽  
Molecular Formula ◽  
Conductivity Measurements ◽  
Ft Ir ◽  
Micro Analysis

A new ligand [4-Methoxy -N-(pyrimidine-2-ylcarbamothioyl) benzamide] (MPB) was synthesized by reactioniofi(4-Methoxyibenzoyliisothiocyanate)withi(2-aminopyri-midine). The Ligand was characterized by elemental micro analysis (C.H.N.S),(FT-IR) (UV- Vis) and (1Hi,13CNMR)spectra. Some transition metals complexes of this ligand were prepared and characterized by (FT-IR, UV-Vis) spectra conductivity measurements magnetic susceptibility and atomic absorption. From the obtained results the molecular formula of all complexes was suggested to be [M(MPB)2Cl2] (M+2i=Cu, Mn, Co ,Ni ,Zn ,Cd and Hg),the proposed geometrical structure for all complexes was an octahedral.

scholarly journals Synthesis and Characterization of Some Novel Oxazine, Thiazine and Pyrazol Derivatives

2016 ◽  
Vol 13 (2) ◽  
pp. 244-252
Author(s):  
Baghdad Science Journal
Keyword(s):  
Acetic Acid ◽  
Ir Spectra ◽  
Glacial Acetic Acid ◽  
Basic Medium ◽  
Synthesis And Characterization ◽  
Pyrazole Derivatives ◽  
Phenyl Hydrazine ◽  
H Nmr ◽  
Ft Ir

In this paper, some chalcone derivatives (C1, C2) were synthesized based on the reaction of equal amount of substituted acetophenone and substituted banzaldehyde in basic medium. Oxazine and thiazine derivatives were prepared from the reaction of chalcones (C1-C2) with urea and thiourea respectively in a basic medium. Pyrazole derivatives were prepared based on the reaction of chalcones with hydrazine mono hydrate or phenyl hydrazine in the presence of glacial acetic acid as a catalyst. The new synthesized compounds were identified using various physical techniques like1 H-NMR and FT-IR spectra.

scholarly journals SYNTHESIS AND CHARACTERIZATION OF TRIAQUATRISULFISOKSAZOL COBALT(II)SULPHATE.nHYDRATE COMPLEX

2010 ◽  
Vol 6 (3) ◽  
pp. 275-279
Author(s):  
Sentot Budi Rahardjo ◽  
Abu Masykur ◽  
Melin Puspitaningrum
Keyword(s):  
Thermal Analysis ◽  
Magnetic Susceptibility ◽  
Electric Conductivity ◽  
Synthesis And Characterization ◽  
Cyclic Voltammograms ◽  
Infra Red

Complex of cobalt(II) with sulfisoxazole (slfs) has been synthesized in 1 : 4 mole ratio of metal to ligands in methanol, the complex formula is [Co(slfs)3(H2O)3]SO4.nH2O. The electric conductivity of the complex in methanol correspond to 1:1 electrolyte. The thermal analysis indicates that complex contain some hydrates. Magnetic Susceptibility measurements show that the complex is paramagnetic with µeff = 4,60(9) BM. Infra red spectra indicates that the primary N-H group coordinated to the center ion, it is signed by a shift of primary N-H group absorption. UV-Vis spectrum appears one peak at λ= 515,5 nm (19.342 cm-1) due to transition peak of 4T1g (F) → 4T2g (P) (ν3) overlay to transition peak of 4T1g(F) → 4A2g(F) (ν2). The value of 10 Dq (Δo) that corresponds to transition 4T1g → 4T2g (n1) is 95,29 kJ.mol-1. Cyclic voltammograms have revealed quasi reversible. The complex probably is octahedral.   Keywords: cobalt(II), sulfisoxazole, complex, paramagnetic, octahedral

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