Synthesis, Characterization and Biological Activity of Mixed Ligand Metal Salts Complexes with Various Ligands

Obaid, Shatha M. H.; Jarad, Amer J.; Al‐Hamdani, Abbas Ali Salih

doi:10.1088/1742-6596/1660/1/012028

Cited by 16 publications

(12 citation statements)

References 15 publications

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“…Obaid et al reported that the best ligand concentration for extracting metal ions from water by cloud point extraction (CPE) was 55 × 10 -4 mol L -1 . At a higher concentration (excess of LH 2 ), competition with a complexing agent (Triton X-114) reduces the metal ion concentration in complexes and decreases absorbance [24].…”

Section: Effect Of Ligand Amountmentioning

confidence: 99%

Preparation and Characterization of New Tetra-Dentate N2O2 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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Section: Effect Of Ligand Amountmentioning

confidence: 99%

Preparation and Characterization of New Tetra-Dentate N2O2 Schiff Base with Some of Metal Ions Complexes

2021

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“…We observed that the remaining complexes are metal oxides, and the remaining ligand is carbon. In addition, the DSC curve is used to determined exothermic, or endothermic and amount of heat [34][35][36]. The results of thermal studies of the ligand and its complexes are represented in Table 5, Scheme 2 and Figures 3-5.…”

Section: Thermal Studiesmentioning

confidence: 99%

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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“…(Two negative for Gram stain and two positive for Gram stain, the compound is effective against positive stain bacteria. Staphylococcus aurous and Streptococcus pneumonia) are effective against Escherichia coil negative bacteria only at 200 ml / mg [26][27] egt. All Antibacterial activities of the prepared compounds in Fig.…”

Section: Biological Activitymentioning

confidence: 99%

Preparation, Spectroscopy, Biological Activities and Thermodynamic Studies of New Complexes of Some Metal Ions with 2-[5-(2-Hydroxy-Phenyl)- 1,3,4-Thiadiazol-2-Ylimino]-Methyl-Naphthalen-1-Ol]

Shaalan

2022

Baghdad Sci.J

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This study describes the preparation of new series of tetra-dentate N 2 O 2 dinuclear complexes (Cr 3+ , Co 2+ , Cu 2+ ) of the Schiff base derived from condensation of 1-Hydroxy-naphthalene-2-carbaldehyde with 2amino-5-(2-hydroxy-phenyl)-1,3,4-thiadiazole. The structures of the ligands were identified using IR, UV-Vis , mass, elemental analysis and 1 H-NMR techniques. All prepared complexes have been characterized by conductance measurement, magnetic susceptibility, electronic spectra, infrared spectrum, theromgravimatric analysis (TGA) and metal analysis by atomic absorption. From stoichiometry of metal to ligand and all measurements show a octahedral geometry proposed for all complexes of the (Cr 3+ , Co 2+ , Cu 2+ ). conductivity measurement shows that of the prepared (Co 2+ , Cu 2+ ) complexes were non electrolyte but (Cr 3+ ) complexes were electrolyte. The parameters of thermodynamic, activation energy E a , enthalpy ΔH, entropy ΔS and Gibbs free energy ΔG were calculated using Coats-Redfern method by the TGA curve. The bioactivity of the prepared (LH 2 ) and its complexes have been examined with antibacterial activity which shows significant activity against some fungi and bacteria.

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Synthesis, Characterization and Biological Activity of Mixed Ligand Metal Salts Complexes with Various Ligands

Cited by 16 publications

References 15 publications

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

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

Untitled

Preparation, Spectroscopy, Biological Activities and Thermodynamic Studies of New Complexes of Some Metal Ions with 2-[5-(2-Hydroxy-Phenyl)- 1,3,4-Thiadiazol-2-Ylimino]-Methyl-Naphthalen-1-Ol]

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