Synthesis, Characterization and Biological Efficacies from Some New Dinuclear Metal Complexes for Base 3-(3,4-Dihydroxy-phenyl)-2-[(2-hydroxy-3-methylperoxy-benzylidene)-amino]-2-methyl Propionic Acid

Obaid, Shatha M. H.; Sultan, Jasim Shihab; Al‐Hamdani, Abbas Ali Salih

doi:10.22146/ijc.49842

Cited by 17 publications

(17 citation statements)

References 18 publications

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“…[22][23][24] In addition, earlier study has shown that in the presence of transition metals, the azo-dye nitrogen is always more likely to favor complexation. 25,26 It was difficult to confirm that the Co(II)complex was engaged in chelate formation due to the presence of coordinated water molecules. The existence of OH bands in the IR spectra of Co(II) complex in the 3423 cm1 region was attributed to the presence of coordinated water molecules in the coordination sphere.…”

Section: Liquid Chromatography-mass Spectrometry (Lc-ms) Measurementsmentioning

confidence: 99%

Synthesis, Characterization, and Thermal Analysis of a New Acidicazo Ligand's Metal Complexes

Al-Daffay,

Al-Hamdani

2023

Baghdad Sci.J

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The researchers wanted to make a new azo imidazole as a follow-up to their previous work. The ligand 4-[(2-Amino-4-phenylazo)-methyl]-cyclohexane carboxylic acid as a derivative of trans-4-(aminomethyl) cyclohexane carboxylic acid diazonium salt, and synthesis a series of its chelate complexes with metalions, characterized these compounds using a variety technique, including elemental analysis, FTIR, LC-Mass, 1 H-NMRand UV-Vis spectral process as well TGA, conductivity and magnetic quantifications. Analytical data showed that the Co (II) complex out to 1:1 metal-ligand ratio with square planner and tetrahedral geometry, respectively while 1:2 metal-ligand ratio in the Cu(II), Cr(III), Mn(II), Zn(II), Ru(III)and Rh(III)complexes with octahedral geometry except Mn complex has tetrahedral geometry. The Ligand functions as a neutral tridentate ligand in all complex investigations, coordinating Cr(III), Zn(II), Ru(III), and Rh(III) ions via the N atom of amine and azo groups, as well as the O phenolic OH group. When coordinated with the Cu(II), Co(II), and Mn(II) ions via the two N atoms of the amine and azo groups, this Ligand functions as a neutral bidentate.

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Section: Liquid Chromatography-mass Spectrometry (Lc-ms) Measurementsmentioning

confidence: 99%

Synthesis, Characterization, and Thermal Analysis of a New Acidicazo Ligand's Metal Complexes

Al-Daffay,

Al-Hamdani

2023

Baghdad Sci.J

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“…As shown in the tables, the disappearance of the bands in the range 3419-3481 cm -1 belonging to the hydroxyl phenolic (O) complexes is evidence of its chelation by the phenolic oxygen atom [13]. The bending (Wagging and twisting) of the coordination water complexes appears by about 623-757 cm -1 [14]. The linked nitrogen atom of thiadiazol ring shows shifted absorption bands of ligand at 1174-1303 cm -1 in complexes confirming the metal's binding to the by group =N-N= [15].…”

Section: Ft-ir Spectra Of Complexesmentioning

confidence: 99%

Preparation and Characterization of New Tetra-Dentate N<sub>2</sub>O<sub>2</sub> Schiff Base with Some of Metal Ions Complexes

2021

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This study describes preparation a new series of tetra-dentate N2O2 dinuclear complexes Cr(III), Co(II)and Cu(II) of the Schiff base 2-[5-(2-hydroxy-phenyl)-1,3,4-thiadiazol-2-ylimino]-methyl-naphthalen-1-ol], (LH2) derived from 1-hydroxy-naphthalene-2-carbaldehyde with 2-amino-5-(2-hydroxy-phenyl)-1,3,4-thiadiazole. These ligands were characterized by FT-IR, UV-Vis, Mass spectra, elemental analysis, and 1H-NMR. All prepared complexes have been characterized by conductance measurement, magnetic susceptibility, electronic spectra, infrared spectrum, thermal Analysis (TGA), and metal analysis by atomic absorption. The stoichiometry of metal to ligand, magnetic susceptibility, and electronic spectra measurements show an octahedral geometry for all (Cr3+, Co2+, Cu2+) complexes. Conductivity measurement shows that the prepared (Co2+, Cu2+) complexes were nonelectrolyte except (Cr3+). Studying the extraction efficiency such as ligand concentration, temperature and incubation time, centrifuge time, amount of surfactant were evaluated and optimized. The linear range of ions Cr(III), Co(II) and Cu(II) with ligand (0.2–3, 0.2–4, 0.2–3, µg mL–1), each individually, and relative standard deviation (0.15%, 0.34%, 0.46%). The successful method was applied for the determination of trace metal ions in the wastewater.

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“…In addition, two new absorption peaks at (456 and 575) nm are attributed to transitions type 1 A1g→ 1 T2g, 1 A1g→ 1 T1g, respectively of Pt(IV) complex. It was indicative of octahedral geometry [20,21]. The electronic absorption of [Au (L)(H2O)Cl] peaks at (285) nm is ascribed to the π⟶π*, and (442) nm, (578) nm are ascribed to the 1 A1g→ 1 B1g, 1 A1g→ 1 A2g, respectively, which are a good evidence for square planer geometry [22], electronic transition, magnetic moments, and suggested formula of metal complexes given in Table 3.…”

Section: Electronic Transitionmentioning

confidence: 78%

Untitled

2023

J. Med. Chem. Sci.

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This research includes the preparation of a new azo 2-((2-(1H-indol-2yl)ethyl)diazinyl)-5-aminophenol, in which the diazonium salt of 2(1H-Indole-3yl)-ethylamine reacts with a compound 3-aminophenol, and complexes have been prepared with the ions of Ni (II), Pd(II), Pt(IV), and Au(III). The characteristics of compounds include F.A.A, (C. H .N and O), 1 H & 13 C-NMR, IR, LC-Mass , UV-Vis spectral, DSC/TGA curve, the measurements of magnetic, and molar conductance. Each complex has an amount of [1:1] [M:L] and does not contain electrolytes. Based on the obtained results, molecular structural and geometry have been octahedral geometry suggest of Pt(IV) complex and tetrahedral of Ni (II)complex, the square planar of both Pd(II) and Au(III) complexes. K E Y W O R D S Azo ligand Mass spectroscopy Spectroscopic studies Thermal study 2-((2-(1H-indol-2-yl)ethyl)diazinyl

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Synthesis, Characterization and Biological Efficacies from Some New Dinuclear Metal Complexes for Base 3-(3,4-Dihydroxy-phenyl)-2-[(2-hydroxy-3-methylperoxy-benzylidene)-amino]-2-methyl Propionic Acid

Cited by 17 publications

References 18 publications

Synthesis, Characterization, and Thermal Analysis of a New Acidicazo Ligand's Metal Complexes

Synthesis, Characterization, and Thermal Analysis of a New Acidicazo Ligand's Metal Complexes

Preparation and Characterization of New Tetra-Dentate N<sub>2</sub>O<sub>2</sub> Schiff Base with Some of Metal Ions Complexes

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