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Synthesis, spectral characterization and thermal ‎study of complexes of ions of some metallic ‎elements with new cyclic ligands
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The purpose of my thesis is to prepare four new ligands (L1-L4) that have been ‎used to prepare a series of metal complexes by reacting them with metal ions:‎ ‎ M=(Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Hg(II) ‎ ‎ Where succinyl chloride was used as a raw material for the preparation of ‎bi-dented ligands (L1-L4) by reacting it with potassium thiocyanate as a first ‎step and then reacting with (2-aminobenzothiazole, Benzylamine, 4-‎aminoantipyrine, Sulfamethoxazole) respectively as a second step with the use ‎of dry acetone as a solvent, the chemical formula of the four ligands prepared in ‎succession:‎ N1,N4-bis(benzo[d]thiazol-2-ylcarbamothioyl)succinamide (L1)‎ N1,N4-bis(benzylcarbamothioyl)succinamide (L2)‎ N1,N4-bis((1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl) ‎carbamothioyl)succinamide (L3)‎ N1,N4-bis((4-(N-(5-methylisoxazol-3-yl)sulfamoyl) phenyl) carbamo thioyl) ‎succinamide (L4)‎ ‎ The new ligands were identified using spectroscopic measurements that ‎included (FT-IR spectra, UV-Vis spectra, and nuclear magnetic resonance (1H, ‎‎13CNMR) spectra, mass spectra, elemental analysis (C.H.N.S), and thermal ‎analysis (TGA&DSC), as the results of the measurements proved to be identical ‎to the proposed molecular formula for these ligands.‎ ‎ A series of metal complexes for ligands was also prepared, which included ‎seven complexes for each ligand, by adding each of the metal ions to the four ‎ligands prepared in succession to produce the following molecular formulas: -‎ ‎[M2(L)Cl4] , L= L1, L2, L3, L4‎ ‎(M= Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Hg(II))‎ ‎ The prepared complexes were diagnosed by several techniques, including the ‎study of the infrared spectra of the prepared complexes, and when comparing ‎those spectra with the spectra of each of the four ligands prepared in the free ‎form, these gave clear changes, including the emergence of a new band within ‎the fingerprint area. It was not originally present in the spectra of ligands in ‎their free form, and this is due to the occurrence of coordination between the ‎metal ions under study and the donor atoms, which are the oxygen atom of the ‎‎(C=O) group, and the sulfur atom of the (C=S) group in the ligands. (L1-L4), ‎while other distinct bands were obtained with clear changes in shape, intensity, ‎and location, and this is an indication of the occurrence of a coordination ‎process between the metal ions under study and the four prepared ligands.‎ ‎ The percentage of metal ions in the prepared complexes was determined by ‎flame atomic absorption spectrometry, where it was shown from the careful ‎analysis of the elements the great agreement between the percentages calculated ‎theoretically and obtained practically.‎ ‎ The magnetic sensitivity results showed that some of the prepared metallic ‎complexes have paramagnetic properties.‎ The measurements of the molar conductivity of the prepared complexes ‎dissolved in DMSO at a concentration of 1×10-3 M and at the laboratory ‎temperature showed that they are of a non-electrolytic nature.‎ ‎ The prepared complexes were also studied through solubility, melting point, ‎and ultraviolet-visible techniques, and through the data of all the ‎aforementioned techniques, structural formulas were proposed for the prepared ‎complexes, through which it was found that the prepared ligands are bivalve ‎chelating ligands that lead to their participation as ligand into complexes with a ‎tetrahedral geometric shape for all metallic complexes under study.‎ ‎ The research included a study evaluating the antioxidant activity of some ‎selected metal complexes by studying the amount of radical scavenging of ‎DPPH* compared to ascorbic acid as an antioxidant reference agent. The zinc ‎complex showed higher activity than the nickel complex compared to standard ‎ascorbic acid. The [Cu2(L1)Cl4] and [Co2(L1)Cl4] complexes were also tested as ‎antibodies to inhibit the breast cancer cell line (MCF-7) and compared with the ‎normal cell line (HdFn), where the copper complex showed the ability to inhibit ‎the cancerous cell line compared with the cobalt complex. ‎ ‎ The molecular binding of ligands (L3) and (L4) was also studied, and their ‎possibility of using them as drugs in the treatment of some diseases, where the ‎ligand L3 showed better association with the active site of the enzyme than the ‎ligand L4, and is expected to highest antimicrobial effect. ‎ ‎ Finally, the biological effect of the prepared ligands and some of their ‎complexes on the growth of two types of bacteria, Escherichia coli and ‎Staphylococcus aureus, was studied using DMSO solvent, where the complexes ‎showed greater activity than the ligands against the selected types of bacteria. ‎‏

Publication Date
Sat Dec 26 2020
Journal Name
International Journal Of Pharmaceutical Research
Complexes of Co(II), Cu(II), Ni(II), Pt(II) And Pd(II) with N 3 O-Chelating Ligand Incorporating Azo and Schiff Base Moieties: Synthesis, Spectroscopic, Thermal Decomposition, Theoretical Studies, and thermodynamic parameters
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Publication Date
Mon Dec 30 2013
Journal Name
Journal Of The College Of Basic Education
Synthesis and Antimicrobial Activities of (Mn, Co, Ni, Cu, Hg and Ag) Complexes with Poly (Vinyl-4-Aminobenzoate)
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The aim of this work is synthesis of _Eoly (Vinyl-4-AminoBenzoate) (PVAB) from reaction of _Eoly Vinyl Alkohol PVA with 4-aminobenzoyl chloride in alkaline media. We also prepare the metal complexes of poly (vinyl- 4-aminobenzoate) and antimicrobial properties were evaluated by dilute method against five pathogenic bacteria (Escherichia coli, Shigella dysentery, Klebsiella pneumonae, Staphylococcus aureus, Staphylococcus Albus) and two fungal (Aspergillus Niger, Yeast). All polymer metal complexes showed different activities against the various microbial isolates. The polymer metal complexes showed higher activity than the free polymer.

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Publication Date
Thu Jan 26 2017
Journal Name
Separation Science And Technology
Schiff bases and their complexes: Recent progress in thermal analysis
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Schiff bases are versatile compounds synthesized from the condensation of primary amino compounds with aldehydes or ketones. The high thermal of many Schiff base and their complexes were useful attributes for their application as catalysts in reactions involving at high temperatures. This thermal behavior of Schiff bases and their complexes was evaluated by TGA/DTG and DTA curves with 10 mass losses related to dehydration and decomposition. This review summarizes the developments in the last decade for thermal analysis of Schiff bases. Therefore, synthesis of Schiff bases and their complexes are reviewe

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Publication Date
Sat Sep 30 2017
Journal Name
Iraqi Journal Of Chemical And Petroleum Engineering
Synthesis and Characterization of Tri-Composite Activated Carbon
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Activated carbon loading with metals oxides is new adsorbents and catalyst, which seem very promising for desulfurization process. The present study deals with the preparation of three metals oxides loaded on activated carbon (AC). The tri composite of ZnO/NiO/CoO/AC was characterized by X-Ray Diffraction (XRD), X-Ray florescence (XRF), N2 adsorption for BET surface area, pore volume and Atomic Force Microscopy (AFM). The effect of calcination temperature is investigated. The best calcination temperature is 250oC based on the presence of phase, low weight loss and keep at high surface area. The surface area and pore volume of prepared tri composite are 932.97m2/g and 0.6031cm3/g respec

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Publication Date
Tue Oct 30 2018
Journal Name
Iraqi Journal Of Physics
Synthesis and characterization of nanocrystalline copper sulfide powders
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Nanocrystalline copper sulphide (Cu2-xS) powders were synthesized by chemical precipitation from their aqueous solutions composed of different molar ratio of copper sulfate dehydrate (CuSO4.5H2O) and thiorea (NH2)2CS as source of Cu+2, S-2 ions respectively, and sodium ethylene diamine tetra acetic acid dehydrate (EDTA) as a complex agent. The compositions, morphological and structural properties of the nanopowders were characterized by energy dispersive spectroscopy (EDS), scanning electron microscope (SEM), and X-ray diffraction (XRD), respectively. The compositional results showed that the copper content was high and the Sulfur content was low for both CuS and Cu2S nanopowders. SEM images shows that all products consist of aggregate o

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Publication Date
Sun Sep 06 2015
Journal Name
Baghdad Science Journal
Synthesis, Characterization and Antibacterial Activity of Cefalexin Dervatives
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New series of Schiff bases 2(a-j) and corresponding beta-lactam derivatives 3(a-j) were synthesized from cefalexin (1) as starting material. The compound (1) was reacted with different aldehydes and ketones to give Schiff bases derivatives 2(a-j). The synthesized Schiff bases were cyclized by chloroacetyl chloride in the presence of triethylamine to form beta-lactam derivatives 3(a-j). The compounds were characterized by deremination melting point, FT-IR and 1H NMR. The beta-lactam derivatives were screened in vitro antibacterial against some bacterial species

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Publication Date
Thu Aug 10 2017
Journal Name
Journal Of The College Of Basic Education
Detection of some major elements and protein in Fusarium wilt disease infected tomato(Lycopersicon esculentum) treated with Arbuscular mycorrhizal fung
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The present study was Conducted to evaluate the effect of amixture of three species of arbuscular mycorrhizal fungi ( Glomus etunicatum , G. leptotichum and Rhizophagus intraradices ) in Influence on the percentage of the components of NPK and protein of tomato leaves and roots infected with Fusarium oxysporum f.sp. Lycopersici wich cause Fusarial wilt disease , planted for 8 weeks in the presence of the organic matter ( peatmose) , using pot cultures in aplastic green house , Results indicated significant increase in the percentage of the elements of NK and protein of tomato leaves and roots In the control treatment (C), While the percentage of the element P was after infection with the pathogen 4 weaks after mycorrhizal colonization in al

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Publication Date
Tue Oct 10 2017
Journal Name
مجلة كلية التربية الاساسية/الجامعة المستنصرية
Detection of some major elements and protein in Fusarium wilt disease infected tomato(Lycopersicon esculentum) treated with Arbuscular mycorrhizal fungi
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Abstract The present study was Conducted to evaluate the effect of amixture of three species of arbuscular mycorrhizal fungi ( Glomus etunicatum , G. leptotichum and Rhizophagus intraradices ) in Influence on the percentage of the components of NPK and protein of tomato leaves and roots infected with Fusarium oxysporum f.sp. Lycopersici wich cause Fusarial wilt disease , planted for 8 weeks in the presence of the organic matter ( peatmose) , using pot cultures in aplastic green house , Results indicated significant increase in the percentage of the elements of NK and protein of tomato leaves and roots In the control treatment (C), While the percentage of the element P was after infection with the pathogen 4 weaks after mycorrhiza

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Publication Date
Tue May 12 2020
Journal Name
International Journal Of Pharmaceutical Research
Synthesis and Biological Activity of New Imidazaldinone Derivatives
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A research include of synthesized five member ring, which has been synthesized by condensation of 2-(1-(4- hydroxyphenyl) ethylidene)hydrazine-1-carbothioamide[I] with α-chloro ethylacetate in sodium acetate (fused) to form ethyl 2-(4-(1-((4-oxo-2-thioxopyrrolidin-3-ylidene)hydrazono) ethyl)phenoxy)acetate [II]. After that reacted [II]with hydrazine hydrate to resulting compound [III]. Compound [III] was refluxed with 4-aminobenzoicacid in excess of phosphorus oxy chloride give compound [IV],the later compound [IV] interact with acetyl acetone or ethylacetoacetate give to pyrazole and pyrazoline derivatives[V],[VI]. While when reacted with different aromatic aldehydes and one ketone consistence Schiff base derivatives [VII]a-e . The FTIR a

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Publication Date
Mon Jun 01 2020
Journal Name
Journal Of Pharmaceutical Sciences And Research
Synthesis and Biological Activity of New Imidazaldinone Derivatives
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A research include of synthesized five member ring, which has been synthesized by condensation of 2-(1-(4- hydroxyphenyl) ethylidene)hydrazine-1-carbothioamide[I] with α-chloro ethylacetate in sodium acetate (fused) to form ethyl 2-(4-(1-((4-oxo-2-thioxopyrrolidin-3-ylidene)hydrazono) ethyl)phenoxy)acetate [II]. After that reacted [II]with hydrazine hydrate to resulting compound [III]. Compound [III] was refluxed with 4-aminobenzoicacid in excess of phosphorus oxy chloride give compound [IV],the later compound [IV] interact with acetyl acetone or ethylacetoacetate give to pyrazole and pyrazoline derivatives[V],[VI]. While when reacted with different aromatic aldehydes and one ketone consistence Schiff base derivatives [VII]a-e . The FTIR a

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