A green chemical method for synthesis of ZnO nanoparticles from solid-state decomposition of Schiff-bases derived from amino acid alanine complexes

Gharagozlou, Mehrnaz; Baradaran, Zahra; Bayati, R.

doi:10.1016/j.ceramint.2015.03.029

Cited by 47 publications

(21 citation statements)

References 44 publications

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“…On the other hand, the micrograph of [Cd (HL)(H 2 O) 2 Cl 2 ].2H 2 O showed clouds or foams structure. The particle size of HL ligand was 54 nm, while for Cd (II) complex was 41 nm …”

Section: Resultsmentioning

confidence: 99%

Transition metal complexes of nano bidentate organometallic Schiff base: Preparation, structure characterization, biological activity, DFT and molecular docking studies

Mahmoud

Deghadi

Desssouky

2018

Applied Organom Chemis

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An organometallic NO-bidentate Schiff base, (2-(1-((1-carboxyethyl)imino) ethyl) cyclopenta-2,4-dien-1-yl)(cyclopenta-2,4-dien-1-yl) iron (HL) was synthesized by condensation of 2-acetylferrocene with amino acid alanine. Then its octahedral Cr (III), Mn (II), Fe (III), Co (II), Ni (II), Cu (II), Zn (II) and Cd (II) complexes were synthesized. All compounds were characterized on the basis of elemental analysis (C, H, N and M), molar conductivity, FT-IR, UV-Vis, 1 H-NMR, SEM, mass analysis and thermal studies. Furthermore, computational studies of HL ligand have been carried out by DFT/B3LYP method. HOMO and LUMO energy values, chemical hardness-softness, electronegativity, electrophilic index and other parameters were calculated. SEM micrographs of HL ligand and its [Cd (HL)(H 2 O) 2 Cl 2 ].2H 2 O complex, showed that they were prepared in nano-structure forms with particle size 54 and 41 nm, respectively. Antifungal and antibacterial activities of HL ligand and its metal complexes have been screened in vitro against different species such as Aspergillus fumigatus, Candida albicans, Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Salmonella typhimurium. The synthesized compounds were evaluated for their anticancer activities against breast cancer cell line (MCF-7) and normal melanocytes cell line . It was found that [Co (HL)(H 2 O) 2 Cl 2 ].3H 2 O complex had the lowest IC 50 value (10.9 μg/ml) and hence was the most active one. Finally, the optimized structures of the Schiff base and its Co (II) complex have been used to accomplish molecular docking studies with receptors of 3HB5, 3MIW, 5IBV and 4WM8 to determine the most preferred mode of interaction.

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“…On the other hand, the micrograph of [Cd (HL)(H 2 O) 2 Cl 2 ].2H 2 O showed clouds or foams structure. The particle size of HL ligand was 54 nm, while for Cd (II) complex was 41 nm …”

Section: Resultsmentioning

confidence: 99%

Transition metal complexes of nano bidentate organometallic Schiff base: Preparation, structure characterization, biological activity, DFT and molecular docking studies

Mahmoud

Deghadi

Desssouky

2018

Applied Organom Chemis

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“…The Zn Schiff‐base complex is achieved from the coordination of Schiff‐base ligand with Zn ions that were added in the form of zinc acetate solution. This compound contains the Schiff‐base ligand, so it is named “the binary Zn Schiff‐base complex” [Zn(L 1–10 )(H 2 O)] . By mixing the as‐synthesized binary complex with 1,10‐phenanthroline monohydrate solution, three different ligands, that is, chelating, Phen, and Schiff base, are generated in the Zn‐containing compound; therefore it is named “the ternary Zn complex” [Zn(L 1–10 )(Phen)] .…”

Section: Resultsmentioning

confidence: 99%

Water‐based synthesis of ZnO nanoparticles via decomposition of a ternary zinc complex containing Schiff‐base, chelating, and Phen ligands

Gharagozlou

Naghibi

Ataei

2018

J Chinese Chemical Soc

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The recent environmental awareness has been the motivation for the growing preference for environmentally friendly and water‐based systems in chemical synthesis. In the present work, ZnO nanoparticles were synthesized via a novel method without any water‐insoluble compounds. At the first step, a binary Zn Schiff‐base complex was prepared from sodium salicylaldehyde‐5‐sulfonate, L‐alanine, and zinc acetate. Then, a ternary Zn complex containing the Schiff‐base, chelating, and Phen ligands was synthesized from the as‐synthesized binary Zn Schiff base and 1,10‐phenanthroline monohydrate. This intermediate product showed high water solubility and long‐term stability. Finally, ZnO nanoparticles were synthesized through the calcination of the ternary complex powder at 400, 500, and 600 °C. Combining X‐ray diffraction (XRD) and energy dispersive spectroscopy (EDS) results, it was concluded that the samples contained the ZnO phase without any impurity phases, but Fourier transform infrared (FTIR) spectra implied the presence of a remaining impurity. According to the XRD, FTIR, and photoluminescence (PL) analyses, the as‐synthesized samples differed in terms of the defect content and lattice strain. The sample calcined at 500 °C possessed the lowest defect content and lattice strain. Transmission electron microscopy (TEM) imaging revealed the formation of ZnO nanoparticles with particles sizes of <20, ~50, and ~100 nm for samples heat‐treated at the different temperatures.

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“…ZnO as a well-known ceramic material has become an interesting topic for several researches, and numerous preparation routs [5,6], morphologies [7][8][9][10], and characteristics [11,12] have been reported. The crystal structure of ZnO wurtzite is hexagonal.…”

Section: Introductionmentioning

confidence: 99%

Perforated ZnO nanoflakes as a new feature of ZnO achieved by the hydrothermal-assisted sol–gel technique

Khaghanpour

Naghibi

2017

J Nanostruct Chem

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The perforated ZnO nanoflakes with high degree of crystallinity and uniformity were synthesized via the hydrothermal-assisted sol-gel technique without any template. ZnCl 2 was used as a Zn-containing precursor, causing the oriented growth of particles. The observation of a hole on the facet of the as-synthesized particles was discussed in this work. XRD, TEM, and DRS were used to investigate the prepared powder and a simple mechanism was suggested to explain the hole formation on the surface of nanoflakes. As a result, the synthesized powder included pure ZnO with direct band gap energy of 3.24 eV. The range of particle size was within 1 lm in diameter and \50 nm in thickness. A circle hole with 300-500 nm in diameter was observed on the facet of the as-synthesized particles.

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A green chemical method for synthesis of ZnO nanoparticles from solid-state decomposition of Schiff-bases derived from amino acid alanine complexes

Cited by 47 publications

References 44 publications

Transition metal complexes of nano bidentate organometallic Schiff base: Preparation, structure characterization, biological activity, DFT and molecular docking studies

Transition metal complexes of nano bidentate organometallic Schiff base: Preparation, structure characterization, biological activity, DFT and molecular docking studies

Water‐based synthesis of ZnO nanoparticles via decomposition of a ternary zinc complex containing Schiff‐base, chelating, and Phen ligands

Perforated ZnO nanoflakes as a new feature of ZnO achieved by the hydrothermal-assisted sol–gel technique

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