Comprehensive catalytic and biological studies on new designed oxo- and dioxo-metal (IV/VI) organic arylhydrazone frameworks

Abualreish, M. J. A.; Mohamad, Ahmad Desoky M.; Adam, Mohamed Shaker S.

doi:10.1016/j.molliq.2023.121309

Cited by 9 publications

(10 citation statements)

References 98 publications

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“…43 The following mass loss for MoO 2 L 2 was detected at 230−350 °C with a slow drop in the mass of the complex, which is assumed for the decomposition of the organic chains in MoO 2 L 2 with 90%. 49 A sharp degradation was further found in the temperature range of 270−340 °C, with a mass loss of 35% (Figure S9).…”

Section: Resultsmentioning

confidence: 96%

“…The observed mass loss in the temperature scale from 180 to 220 °C for MoO 2 L 2 demonstrated the loss of atmospheric moisture in the MoO 2 L 2 sample with a mass loss percentage of 94% . The following mass loss for MoO 2 L 2 was detected at 230–350 °C with a slow drop in the mass of the complex, which is assumed for the decomposition of the organic chains in MoO 2 L 2 with 90% . A sharp degradation was further found in the temperature range of 270–340 °C, with a mass loss of 35% (Figure S9).…”

Section: Resultsmentioning

confidence: 99%

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ZnO–TiO₂ Nanoparticles Coated by the Dioxomolybdenum (VI) bis-Schiff Base Complex for Catalytic Oxidation of Sulfides

Adam

Taha

Mostafa

et al. 2023

ACS Appl. Nano Mater.

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The oxygenation processes for the organic compounds have great applications in fine organic fabrications. To speed up progress in the industrialization of such oxidation systems, a monometallic dioxomolybdenum (VI) bis-Schiff base complex (MoO 2 L 2 ) was synthesized through coordination of easily accessible 4-hydroxyiminophenol ligand (HL) with cis-MoO 2 2+ ion in an octahedral geometry. The structural conformation of MoO 2 L 2 and its coordinated ligand (HL) was determined using modern spectrophotometric tools. A heterogeneous catalyst (MoO 2 L 2 @ZnO−TiO 2 ) was successfully prepared by immobilization of MoO 2 L 2 on the surface of ZnO−TiO 2 nanostructured particles through the deprotonation of 4-OH group in its coordinated ligand. Various analytical techniques were used to examine the surface morphology and internal structure features of ZnO−TiO 2 and MoO 2 L 2 @ZnO−TiO 2 nanocomposites. To study the catalytic efficiency of MoO 2 L 2 and MoO 2 L 2 @ZnO−TiO 2 -based catalysts, they were employed in the oxygenation process of Ph 2 S (diphenyl sulfide) and MePhS (methylphenyl sulfide) using the most environmentally friendly oxidant (an aqueous H 2 O 2 ) under an aerobic environment. A high degree of selectivity was observed for the productivity of diphenyl sulfoxide (Ph 2 SO) and methylphenyl sulfoxide (MePhSO), with some contamination of overoxidation side products (Ph 2 SO 2 and MePhSO 2 ). The catalytic oxidative ability was not observably superior for the heterogeneous coated catalyst by ZnO−TiO 2 over its homogeneous one (MoO 2 L 2 ) due to the less redox activity of ZnO and TiO 2 nanoparticles in the catalytic cycles for the oxygen-transfer mechanism. Both catalysts were successfully recycled, in which the homogeneous catalyst sustained its high catalytic potential for up to three cycles, while the heterogeneous catalyst was able to be reused up to six times.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

ZnO–TiO₂ Nanoparticles Coated by the Dioxomolybdenum (VI) bis-Schiff Base Complex for Catalytic Oxidation of Sulfides

Adam

Taha

Mostafa

et al. 2023

ACS Appl. Nano Mater.

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“…The minimal inhibitory activities for synthesized ligand ( Compound 3 ) and tellurium(IV) complexes ( 8 a – c , 9 a – c ) against the screened microbial strains B. subtilis (+), S. aureus (+), E. coli (−), P. aeruginosa (−), A. niger, C. albicans and A. Clavatus , were examined through micro dilution method [65–67] . The outcome of antimicrobial activities is tabulated in Table 3 and demonstrated in Figure 8.…”

Section: Resultsmentioning

confidence: 99%

Theoretical and Experimental In‐vitro Studies of Novel Thiophene Based Organotellurium(IV) Complexes

Bhardwaj,

Kumar,

Bendi

et al. 2024

Chemistry & Biodiversity

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Schiff bases are one of the important classes of organic compounds containing imine or azomethine functional groups with potential biological applications in medicinal chemistry. These bases played a significant role in developing inorganic, bioinorganic, and optical materials and coordination complexes. Nowadays, these compounds have attracted the scientific community's attention due to their ability to act as ligands in the formation of stable metal complexes with significant biological activity. In this connection, we have designed and synthesized some novel thiophene‐based organoltellurium (IV) complexes using a novel N‐((5‐methylthiophen‐2‐yl) methylene)‐2‐nitroaniline (5MTCONA) schiff base. The synthesized schiff base and organotellurium complexes were characterized with FT‐IR, Mass spectrometry, 1H NMR, 13C NMR, Powder XRD, and TGA. The in‐vitro pharmacological evaluation of these compounds has been carried out as antimicrobial and antioxidant agents. The theoretical studies (Semi empirical PM3 method, Molecular Docking, and ADMET) of all the compounds have also been carried out with Spartan‐14, Hex‐8.0., Swiss ADME software to support the experimental investigations and observed that both the results are in correlation with each other.

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“…UV-Vis Spectra. Among the tools which frequently applied to assign the mode of DNA binding with chemical compounds, UV-Vis titration spectra are considered a considerable one where the compound's absorption peak may alter in its position or strength as a result of its interaction with the DNA molecule [16,47].…”

Section: Antitumor Activity Evaluationmentioning

confidence: 99%

Metal Chelates of Sulfafurazole Azo Dye Derivative: Synthesis, Structure Affirmation, Antimicrobial, Antitumor, DNA Binding, and Molecular Docking Simulation

El‐Ghamry

Al-Ziyadi

Alkhatib

et al. 2023

Bioinorganic Chemistry and Applications

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A series of divalent and one trivalent metal chelates of the azo ligand resulting from coupling of sulfafurazole diazonium chloride with resorcinol have been designed and synthesized. Structure investigation of the isolated chelates have been achieved by applying spectroscopic and analytical tools which collaborated to assure the formation of the metal chelates in the molar ratios of 1L: 1M for Ni(II), Co(II), and Fe(III) chelates, where Cu(II) and Zn(II) complexes formed in the ratio 2L : 1M. The geometrical arrangement around the metal canters was concluded from UV-Vis spectra to be octahedral for all metal chelates. The attachment of the ligand to the metal ions took place through the azo group nitrogen and o-hydroxyl oxygen through proton displacement leading to the ligand being in monobasic bidentate binding mode. Antimicrobial and antitumor activities of the interested compounds have been evaluated against alternative microorganisms and cancer cells, respectively, in a trial to investigate their extent of activity in addition to docking studies. The mode of interaction of the compounds with SS-DNA has been examined by UV-Vis spectra and viscosity studies.

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Comprehensive catalytic and biological studies on new designed oxo- and dioxo-metal (IV/VI) organic arylhydrazone frameworks

Cited by 9 publications

References 98 publications

ZnO–TiO₂ Nanoparticles Coated by the Dioxomolybdenum (VI) bis-Schiff Base Complex for Catalytic Oxidation of Sulfides

ZnO–TiO₂ Nanoparticles Coated by the Dioxomolybdenum (VI) bis-Schiff Base Complex for Catalytic Oxidation of Sulfides

Theoretical and Experimental In‐vitro Studies of Novel Thiophene Based Organotellurium(IV) Complexes

Metal Chelates of Sulfafurazole Azo Dye Derivative: Synthesis, Structure Affirmation, Antimicrobial, Antitumor, DNA Binding, and Molecular Docking Simulation

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Comprehensive catalytic and biological studies on new designed oxo- and dioxo-metal (IV/VI) organic arylhydrazone frameworks

Cited by 9 publications

References 98 publications

ZnO–TiO2 Nanoparticles Coated by the Dioxomolybdenum (VI) bis-Schiff Base Complex for Catalytic Oxidation of Sulfides

ZnO–TiO2 Nanoparticles Coated by the Dioxomolybdenum (VI) bis-Schiff Base Complex for Catalytic Oxidation of Sulfides

Theoretical and Experimental In‐vitro Studies of Novel Thiophene Based Organotellurium(IV) Complexes

Metal Chelates of Sulfafurazole Azo Dye Derivative: Synthesis, Structure Affirmation, Antimicrobial, Antitumor, DNA Binding, and Molecular Docking Simulation

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Product

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ZnO–TiO₂ Nanoparticles Coated by the Dioxomolybdenum (VI) bis-Schiff Base Complex for Catalytic Oxidation of Sulfides

ZnO–TiO₂ Nanoparticles Coated by the Dioxomolybdenum (VI) bis-Schiff Base Complex for Catalytic Oxidation of Sulfides