Two new 1D zigzag Hg(II) nanostructure coordination polymers: Sonochemical synthesis, thermal study, crystal structure and Hirshfeld surface analysis

Montazerozohori, Morteza; Masoudiasl, A.; Doert, Th.

doi:10.1016/j.ica.2016.01.001

Cited by 13 publications

(13 citation statements)

References 49 publications

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“…In the 1 H NMR spectrum of the ligand, the formation of the Schiff base ligand was confirmed by appearance of the azomethine proton signal (H d, H d′ ) as a doublet with a coupling constant of 9.0 Hz at 7.97 ppm. After complexation, this signal indicates downfield shift to new position in the range of 8.13 to 8.23 ppm with a coupling constants in the range of 6.0 to 8.4 Hz that well supports change in the electron density of azomethine hydrogens after linkage to zinc ion . The ligand spectrum shows the signals of aromatic ring protons (H g, H g′ and H h, H h′ ) as doublets at 7.34 and 6.66 ppm with coupling constants of 8.4 and 8.4 Hz, respectively.…”

Section: Resultssupporting

confidence: 52%

“…In the 13 CNMR spectrum of the Schiff base ligand, azomethine carbon peak of (C 3,3´ ) appears at 164.11 ppm. This signal notably shifts to 167.23 to 168.60 ppm in its zinc complexes that is a mainspring to confirm the complex formation via azomethine nitrogen linkage to zinc ion . The peak at 151.22 ppm attributes to (C 9,9´ ) that undergoes a red shift to 152.00 to 154.81 ppm in the zinc complexes spectra.…”

Section: Resultsmentioning

confidence: 78%

“…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%

“…Metal oxide and/or related nanocomposite have various applications in the fields of catalyst, nanocatalyst, optoelectronic, and many others. [20][21][22] Herein, in continuation of our previous reports, [23][24][25][26][27][28][29][30][31][32] 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-1,2diamine are presented. Antibacterial/antifungal properties and thermal behaviors (TG/DTG/DTA) of all zinc complexes are described.…”

Section: Introductionmentioning

confidence: 81%

“…After complexation, this signal indicates downfield shift to new position in the range of 8.13 to 8.23 ppm with a coupling constants in the range of 6.0 to 8.4 Hz that well supports change in the electron density of azomethine hydrogens after linkage to zinc ion. [23][24][25][26][27][28][29][30][31][32][33][43][44][45] In free ligand spectrum, aliphatic hydrogens of (H b, b′ ) and (H c, c′ ) appear as triplet signals in 3.47 and 2.72 ppm that after coordination of the ligand to the zinc metal ion, these signals were downfielded to 3.54 to 3.62 ppm except for ZnLI 2 and 2.86 to 3.00 ppm, respectively. In the ligand spectrum, aliphatic hydrogens (H i, i′ ) appear as a singlet signal at 2.94 ppm.…”

Section: Nmr Spectramentioning

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: Resultssupporting

confidence: 52%

Section: Resultsmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 81%

Section: Nmr Spectramentioning

confidence: 99%

See 3 more Smart Citations

Some novel nanostructure Schiff base compounds: Antimicrobial and thermal behaviors

Khani

Montazerozohori

Naghiha

2018

J of Physical Organic Chem

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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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Sonochemical Synthesis of a Nanosized Coordination Polymer with Catalytic Activity for Selective Epoxidation of Olefins

et al. 2016

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A three-dimensional coordination polymer, {(Mo 2 O 6 )(4,4'-bpy)} n (1) (4,4'-bpy = 4,4'-bipyridine), was synthesized under solvothermal conditions and characterized by single crystal X-ray diffraction analysis, powder X-ray diffraction (XRD), Fourier transformation infrared (FT-IR) spectroscopy and thermogravimetric analysis (TGA). The coordination polymer was also prepared in nanoscale via an ultrasound-assisted top-down process. The nanosized coordination polymer was characterized by means of scanning electron microscopy (SEM), XRD and FT-IR spectroscopy. The prepared oxomolybdate-based coordination polymer, in bulk and nanoscale, was applied as heterogeneous catalyst for the epoxidation of some olefins using tert-butyl hydroperoxide (TBHP) as oxidant. The 3-D coordination polymer, particularly in nanoscale, demonstrated good activity and stability in the epoxidation reaction and could be easily recovered and reused in the reaction.

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Two new 1D zigzag Hg(II) nanostructure coordination polymers: Sonochemical synthesis, thermal study, crystal structure and Hirshfeld surface analysis

Cited by 13 publications

References 49 publications

Some novel nanostructure Schiff base compounds: Antimicrobial and thermal behaviors

Some novel nanostructure Schiff base compounds: Antimicrobial and thermal behaviors

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

Sonochemical Synthesis of a Nanosized Coordination Polymer with Catalytic Activity for Selective Epoxidation of Olefins

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