Complexes of 2-Thioacetic Acid Benzothiazole with Some Metal Ions

Yousif, Emad; Farina, Yang; Kasar, Khawla; Graisa, Abdualbasit; Ayid, Kumail

doi:10.3844/ajas.2009.582.585

Cited by 12 publications

(11 citation statements)

References 11 publications

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“…The observed bands for the Ni(II) complex and its diamagnetic behaviour agrees well with the proposed square planar geometry [26, 30]. The electronic spectrum of the Cu(II) complex displays a broad band assigned to 2 B 1 g → 2 Eg transition, corresponding to square planar geometry [29, 30]. A magnetic moment of 1.51 B.M.…”

Section: Resultssupporting

confidence: 60%

Metal Complexes of Macrocyclic Schiff‐Base Ligand: Preparation, Characterisation, and Biological Activity

Ahmed

Yousif

Hasan

et al. 2013

The Scientific World Journal

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A new macrocyclic multidentate Schiff-base ligand Na4L consisting of two submacrocyclic units (10,21-bis-iminomethyl-3,6,14,17-tricyclo[17.3.1.18,12]tetracosa-1(23),2,6,8,10,12(24),13,17,19,21,-decaene-23,24-disodium) and its tetranuclear metal complexes with Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) are reported. Na4L was prepared via a template approach, which is based on the condensation reaction of sodium 2,4,6-triformyl phenolate with ethylenediamine in mole ratios of 2 : 3. The tetranuclear macrocyclic-based complexes were prepared from the reaction of the corresponding metal chloride with the ligand. The mode of bonding and overall geometry of the compounds were determined through physicochemical and spectroscopic methods. These studies revealed tetrahedral geometries about Mn, Co, and Zn atoms. However, square planar geometries have been suggested for NiII and CuII complexes. Biological activity of the ligand and its metal complexes against Gram positive bacterial strain Staphylococcus aureus and Gram negative bacteria Escherichia coli revealed that the metal complexes become more potentially resistive to the microbial activities as compared to the free ligand. However, these metal complexes do not exhibit any effects on the activity of Pseudomonas aeruginosa bacteria. There is therefore no inhibition zone.

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Section: Resultssupporting

confidence: 60%

Metal Complexes of Macrocyclic Schiff‐Base Ligand: Preparation, Characterisation, and Biological Activity

Ahmed

Yousif

Hasan

et al. 2013

The Scientific World Journal

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“…Magnetic susceptibility and conductivity measurements: The magnetic properties of transition metal complexes coordination compound are due to unpaired electrons bearing in the partially filled d-orbital in the outer shell of these elements [14]. The complex dimagnetic moment in solid state is breakthrough to be zero Niels Bohr magneton and Ag (I) metal moiety exhibited linear geometry.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Spectral, Structural and Antimicrobial Studies of Silver Nanoparticles and Ag(I) Complex of 2-Mercaptobenzothiazole

Ahmed¹,

Al-Sammarraie²

2018

Asian J. Chem.

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In the present study, Ag(I) complex is synthesized by reacting silver nitrate with ligand (2-mercaptobenzothiazole) in a 1:2 mole ratio. Furthermore, silver nanoparticles were prepared by the reduction of AgNO3 using 2-mercaptobenzothiazole in dilute aqueous sodium citrate buffer solution. The Ag(I) complex are characterized by elemental analyses, flame atomic absorption, thermogravimetric analyses, molar conductance and magnetic susceptibility, UV-visible as well as FTIR spectroscopy. Analyses, linear geometry is suggested for the Ag(I) complex. The prepared nanoparticles are characterized using X-ray diffraction, scanning electron microscopy, energy dispersive microscopy, atomic force microscopy, vibrational and electronic spectroscopy. X-ray diffraction analysis revealed that silver nanoparticles with fcc crystal structure. The SEM micrographs indicated that the morphology is nearly rods shaped structure with an average diameter of about 100 nm. Biological activities of the ligand and its Ag(I) complex and silver nanoparticles are tested against Staphylococcus aureus, Escherichia coli bacteria and Candida albicans, Candida tropicalis fungi. It was found that both Ag(I) complex and silver nanoparticles have antimicrobial activities.

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“…Furthermore, researchers are recently developing polymer materials using d-block transition metal complexes because of their novel and extraordinary properties [3][4][5]. e polymer-metal complexes are now being synthesized, whereupon their aromatic and aliphatic monomers with functional groups contain donor atoms such as nitrogen, sulphur, and oxygen (N, S, and O) [6,7].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Dielectric Behaviors of 4-Diethanolaminomethyl Styrene and Benzyl Methacrylate Copolymer and Its Metal Complexes

Açıkses

Öksüz

2019

Journal of Chemistry

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In this paper, the copolymer of 4-diethanolaminomethyl styrene (DEAMSt) with benzyl methacrylate (BMA) was synthesized and characterized using various spectral techniques such as FT-IR, 1 H-NMR, elemental analysis, SEM, XRD, TGA, DTA, and DSC. e copolymer-metal complexes were prepared with Co(II), Ni(II), and Zn(II) metal ions, and poly(DEAMSt-co-BMA) was used as ligand. e copolymer-metal complexes were characterized using elemental analysis. FT-IR, SEM, XRD, magnetic measurements, and the thermal behaviors of the copolymer-metal complexes were studied using TGA, DTA, and DSC. e compositions of DEAMSt and BMA in the copolymer by 1 H-NMR spectra were determined as 0.49 and 0.51, respectively. Both poly(DEAMSt-co-BMA) and poly(DEAMSt-co-BMA)-Zn complexes were heated up to various temperatures. As the temperature increased, the intensities of O-H stretching bands at 3125-3429 cm −1 resulting from hydrogen bond decreased and shifted to high frequency. Gel permeation chromatography was used to determine the average molecular weights and polydispersity index of the poly(DEAMSt0.49-co-BMA) ligand. Both the molecular formula and C, H, and N % were estimated using elemental analysis, and the amounts of metal by mole (%) in the complexes were estimated by SEM-EDX measurements. e XRD patterns of ligand and metal complexes showed that they were of an amorphous nature. e synthesized metal complexes were annealed at 100°C for 1 h in order to obtain crystalline metal complexes. After annealing at 100°C, the metal complexes showed the crystalline structure. e SEM and XRD analysis of the metal complexes confirmed that metal ions contributed to the structure of the ligand. According to the magnetic measurements, it was suggested that geometrical structure for all complexes was tetrahedral geometry and the ratio of ligand to metal was found to be 2 : 1. e dielectric measurements of the ligand and its metal complexes were investigated depend on frequency.of ligands with transition metal ions [8][9][10]. Polymer metal complexes are used in many applications, such as alkali and alkaline earth metal ion separation [11], organic synthesis and nuclear chemistry [12], thermal stability, electrical conductivity, separation, photofunctions, catalytic activity, and biomedicine, gels, and ointments for medical use [13,14]. In addition, polymer-metal complexes are used as models for bioinorganic systems, as well as mechanochemical systems [11,15,16].In the present study, the poly(DEAMSt-co-BMA) was synthesized using free-radical polymerization, and this copolymer system was used as ligand. e copolymer-metal complexes were prepared with Co(II), Ni(II), and Zn(II) metal ions. e resulting copolymer and its metal complexes

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Complexes of 2-Thioacetic Acid Benzothiazole with Some Metal Ions

Cited by 12 publications

References 11 publications

Metal Complexes of Macrocyclic Schiff‐Base Ligand: Preparation, Characterisation, and Biological Activity

Metal Complexes of Macrocyclic Schiff‐Base Ligand: Preparation, Characterisation, and Biological Activity

Synthesis, Spectral, Structural and Antimicrobial Studies of Silver Nanoparticles and Ag(I) Complex of 2-Mercaptobenzothiazole

Synthesis, Characterization, and Dielectric Behaviors of 4-Diethanolaminomethyl Styrene and Benzyl Methacrylate Copolymer and Its Metal Complexes

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