Thermal analyses data and antimicrobial screening of some new nano-structure five coordinated cadmium complexes

Montazerozohori, Morteza; Jahromi, Sajjad Mojahedi; Naghiha, Asghar

doi:10.1016/j.jiec.2014.07.017

Cited by 19 publications

(16 citation statements)

References 45 publications

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“…Table summarizes some selected absorption frequencies of the Schiff base ligand and its zinc complexes. In IR spectrum of ligand, the lack of bands at 1661 and 3336 cm −1 related to carbonyl ν (CO) and ν (NH2) stretching vibrations (as the starting materials) and appearance of a new strong band at 1603 cm −1 assigned as azomethine ν (CN) vibration indicates the formation of ligand . The likely coordination sites involving in chelation are supported by the comparison of the IR spectra of the free ligand and its zinc complexes.…”

Section: Resultsmentioning

confidence: 81%

“…Herein, in continuation of our previous reports, synthesis and characterization of some new zinc complexes of a new tridentate Schiff base ligand entitled as (E)‐N1‐((E)‐3‐phenylallylidene)‐N2‐(2‐((E)‐((E)‐3‐phenylallylidene) amino) ethyl) ethane‐1,2‐diamine are presented. Antibacterial/antifungal properties and thermal behaviors (TG/DTG/DTA) of all zinc complexes are described.…”

Section: Introductionmentioning

confidence: 81%

“…Similarly, in our previous synthetic method, an ethanolic solution of the fresh ligand (1 mmol) was drop by drop added to zinc halide and pseudohalide salts solution (1 mmol in 10 mL of ethanol), and the mixture was severely stirred for 4 hours at room temperature. After this time, the deposited zinc complexes were separated, washed with ethanol, and dried under air.…”

Section: Methodsmentioning

confidence: 99%

“…Accordingly, the stock solutions of the compounds were made in three concentrations (15, 7.5, and 3.75 mg/mL in DMSO). For DMSO against above microorganisms, no remarkable effect was reported . By incubation of the microorganisms in Muller‐Hinton broth medium at 37°C for 24 hours, enriched culture of them were prepared.…”

Section: Methodsmentioning

confidence: 99%

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Some novel nanostructure Schiff base compounds: Antimicrobial and thermal behaviors

Khani

Montazerozohori

Naghiha

2018

J of Physical Organic Chem

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In this paper, five new zinc‐Schiff base compounds formulated as ZnLX2 (L is a new N3‐Schiff base ligand obtained by condensation reaction between diethylenetriamine and (Z)‐3‐(4‐(dimethylamino)phenyl) acrylaldehyde and X is (Cl−, Br−, I−, N3−, and NCS−)) were synthesized and characterized by Fourier transform infrared, 1H and 13C NMR, UV–visible, thermal analyses, and molar conductivity measurements. Low molar conductivity values of the compounds in dimethylformamide (DMF) showed nonelectrolyte character of them. Zinc complexes have been also prepared in nanostructure sizes under ultrasonic irradiation confirmed by X‐ray powder diffraction and scanning electron microscopy. Thereafter, ZnO nanoparticles were prepared by direct calcination process of zinc iodide complex at 600°C under air atmosphere. Furthermore, thermogravimetric analyses of the complexes were used for the investigation of thermal behavior of the tiled compounds. Based on TG/DTG plots, some kinetics activation parameters of the compounds at all thermal decomposition steps were calculated. In final, antimicrobial activities of the compounds were investigated by the well diffusion technique against the gram‐positive bacteria of Staphylococcus aureus and Bacillus subtilis, and the gram‐negative bacteria of Escherichia coli and Pseudomonas aeruginosa and the fungi strains of Aspergillus oryzae and Candida albicans. The results showed that all zinc‐Schiff base organic compounds are more antimicrobial active than free ligand.

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Section: Resultsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 81%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Some novel nanostructure Schiff base compounds: Antimicrobial and thermal behaviors

Khani

Montazerozohori

Naghiha

2018

J of Physical Organic Chem

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“…The SEM of the complexes revealed that the particles are agglomerated and non-uniform particles are observed in some cases. Moreover, SEM micrographs of the metal complexes revealed that the surface morphology of metal complexes is changed by changing the metal ions [61,62]. The calculations of particles size were performed using MagniSci software (Fig.…”

Section: X-ray Diffraction Study (Xrd)mentioning

confidence: 99%

Synthesis, Spectral, Thermal and Biological Studies of Some Metal Complexes Derived from Heterocyclic Mono Azo Dye Ligand 2'[(2'-Hydroxy-4-methyl phenyl)azo]imidazole

Al-Adilee¹,

Atyha²

2018

Asian J. Chem.

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Asian Journal of Chemistry; Vol. 30, No. 2 (2018), 280-292 in the azo dyes compounds, such as hydroxyl, carboxylic acid, halogens, esters and amines [19,20]. An important uses of azo imidazole compounds used analytical reagents for solvent extraction to determination of some metal ions [21,22]. The heterocyclic azo imidazole compounds have important role in spectral determination field to determine the trace amount of elements especially transition metal ions and heavy metals because of high sensitivity and selectivity [23,24].The present work describes the synthesis and spectral characterizations of 2'[2'-(1-hydroxy-4-methyl phenyl)azo]-imidazole (HMePAI = HL), containing phenolic-OH function and imidazole moiety. The heterocyclic mono azo dye ligand and its metal complexes were studied by various spectral analysis and screened for their biological activities. As well as the study of ligand and Ni(II) complex of prescription drug anticancer by using the lines of cancerous liver cells of the type HePG2 and compared with line of the ordinary cells.

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Synthesis, crystal structure, Hirshfeld surface analyses, antimicrobial activity, and thermal behavior of some novel nanostructure hexa‐coordinated Cd(II) complexes: Precursors for CdO nanostructure

Akbari

Montazerozohori

Hoseini

et al. 2021

Applied Organom Chemis

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A new tetradentate Schiff base ligand entitled as (L = (N2E, N2′E)‐N1, N1′‐(ethane‐1,2‐diyl)bis(N2‐((E)‐3‐(2‐nitrophenyl)allylidene)ethane‐1,2‐diamine) and its six cadmium(II) complexes formulated as CdLX2 in which X is Cl, Br, I, NO3, NCS, or N3 were synthesized under ultrasound irradiation and characterized by various physical and spectral techniques. Moreover, some complexes were also prepared in nanostructured dimensions confirmed by scanning electron microscopy (SEM), energy dispersive X‐ray analysis (EDXA), and X‐ray powder diffraction (XRPD) techniques and then were used as precursor for preparation of CdO nanoparticles via direct calcination at 600°C. As typical, the crystal structure of cadmium(II) nitrate complex was determined using single crystal X‐ray diffraction. Accordingly, it was found that [Cd(L)(NO3)2] complex crystallizes in the monoclinic space group P21/n with two independent molecules in the asymmetric unit with two coordination modes of nitrate anions. This complex has zero‐dimensional (0D) coordination supramolecular structure. Hirshfeld surface analyses suggested that H … O (49.5%), H … H (30.3%), and H … C (11.8%) intermolecular interactions are most considerable in the crystal packing. Computational studies of ligand structure leading to electrostatic potentials of the solid state geometry and some occupied molecular orbitals (HOMO, HOMO‐1, HOMO‐2, and HOMO‐5) prevailing the contribution of nitrogen lone pairs are also reported. Thermal behavior studies of the compounds under nitrogen atmosphere from room temperature to 900°C revealed that the ligand is completely decomposed without any residual whereas the complexes are decomposed via two to four thermal steps with trace amount of metallic cadmium as residue. Moreover, antibacterial and antifungal screening well showed that the complexes inhibit from the growth of the various bacteria and fungi more efficient than free ligand especially against Gram‐positive bacteria. DNA cleavage potentials of the compounds may be one of the reasons for their antimicrobial activity.

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Thermal analyses data and antimicrobial screening of some new nano-structure five coordinated cadmium complexes

Cited by 19 publications

References 45 publications

Some novel nanostructure Schiff base compounds: Antimicrobial and thermal behaviors

Some novel nanostructure Schiff base compounds: Antimicrobial and thermal behaviors

Synthesis, Spectral, Thermal and Biological Studies of Some Metal Complexes Derived from Heterocyclic Mono Azo Dye Ligand 2'[(2'-Hydroxy-4-methyl phenyl)azo]imidazole

Synthesis, crystal structure, Hirshfeld surface analyses, antimicrobial activity, and thermal behavior of some novel nanostructure hexa‐coordinated Cd(II) complexes: Precursors for CdO nanostructure

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