ahmedabudief

Dr. Ahmed Mohammed Abu-Dief Mohammed

Assistant Professor - Assistant professor of Inorganic and Physical Chemistry

Faculty of science

Address: Behind hospital of Sohag University - Ali Ebn Abi Taleb Street

140

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Antimicrobial and anticancer activities of cobalt (III)-hydrazone complexes: Solubilities and chemical potentials of transfer in different organic co-solvent-water mixtures
The present study focused on the measurement of the solubilities and the calculation of the chemical potentials of transfer of Co(III)-hydrazone complexes in mixtures of water and ethyl alcohol (EtOH), isopropyl alcohol (_i_-PrOH), or _tert_-butyl alcohol (_t_-BuOH) at 298 K, using the assumption that dm mq Ph4As+ = dm mq BPh4- (TATB). A comparison between the chemical potentials of transfer ... Read more

Azomethine metal chelates as an efficient catalyst for oxidation of organic compounds
Azomethine ligands and their metal chelates are flexible compounds synthesized from the condensation of an amino compound with carbonyl compounds and extensively used for industrial purposes and also show a broad range of biological efficiencies including antibacterial, antifungal, antiviral, antimalarial, antiproliferative, anti-inflammatory, anticancer, anti-HIV, anthelminthic and antipyretic properties. Azomethine metal chelates show excellent catalytic activity in diversity reactions. Over the ... Read more

Development Of Some Novel Azomethine Compounds As Chemo Sensors
Heavy metal pollution possess a great potential threat to the environment and has its own damaging effects to plants, animals and ultimately to human health, because of its release into the environment and water bodies results in a variety of illnesses related with the risk of dermal damage, respiratory problems and several kinds of cancer. On the other hand, the ... Read more

Novel Azomethine Pd(II) and VO(II)  Based Metallo-Pharmaceuticals as Anticancer, Antimicrobial and Antioxidant  agents:  Design, Structural inspection,  DFT investigation and DNA interaction
The new NO bi-dentate imine ligand namely (2-[(3-Nitro-benzylidene)-amino]-benzoic acid) (NBA) imine ligand (L) and their Pd(II) and VO(II) complexes have synthesized and characterized utilizing different physiochemical methods including elemental analyses, FT-IR, NMR, molar conductance and magnetic susceptibility measurements. The stability constant of these complexes has also determined. The studies of these complexes were found to have [M (L)] composition where ... Read more

Catalytic potential of new mononuclear Cr(III)-Schiff base complexes for selective oxidation of benzyl alcohol by H2O2
IN THE PRESENT CONTRIBUTION, SOME NOVEL CR(III) COMPLEXES WERE SYNTHESIZED FROM TRI- AND TETRA-DENTATE IMINE LIGANDS DERIVED FROM 3-ETHOXYSALICYLALDEHYDE OR 2-HYDROXYNAPHTHALDEHYDE WITH 2-AMINOPHENOL OR _O_-PHENYLENEDIAMINE. ALL THE PREPARED LIGANDS WERE AUTHENTICATED BY IR, 1H, 13C NMR SPECTRA AND CHN ANALYSIS. INTERACTION OF THE SYNTHESIZED LIGANDS WITH CHROMIUM NITRATE PRODUCED THREE NOVEL CR(III) COMPLEXES. THE STRUCTURE OF THE PREPARED CR(III) COMPLEXES ... Read more

Synthesis, catalysis, antimicrobial activity and DNA interactions of new Cu(II)-Schiff base complexes
Structural features and catalytic activities of five ternary copper (II)-Schiff base complexes are investigated. The ligands are derived from 3–methoxysalicylaldehyde (MS) or 4– diethylaminosalicylaldehyde (DS) and amino acids {L-phenylalanine (Phe), L histidine (His) or DL-tryptophan (Trp)}, as primary ligands, and 2,4’-bipyridyl (DP) as secondary ligand. Cu(II)- complexes are characterized by various physicochemical tools. The catalytic efficiency of Cu(II)-complexes is studied ... Read more

Design, Synthesis and Structural Inspection of Some Novel Di- And Tri-Azomethene Compounds as Chemo Sensors for the Detection of Various Metal Ions
In this study, NBA imine compound was synthesized via an easy one-pot condensation of 3-nitro-benzaldyhide with 2-amino benzoic acid in 1:1 ratio and DAPH imine compound derived from 2,6-diacetyl pyridine and phenyl hydrazine hydrochloride. Consequences of the newly synthesized compounds hooked up with the aid of FT-IR, elemental analyses, 13C-NMR ,1H-NMR and digital spectral research. Experiments had been consistent with ... Read more

A Simple and Reliable Synthesis of Superparamagnetic Magnetite Nanoparticles by Thermal Decomposition of Fe(acac)3
Magnetic nanoparticles have been largely proposed as means of technological tools due to its value in different fields, especially in biomedicine. Herein, we present a robust, highly reproducible and low-cost method to obtain superparamagnetic magnetite nanoparticles (MNP-II) of about 15±5 nm diameter by thermal decomposition of [Fe(acac)3] in a one pot, two steps method. In the first step, magnetite nanoparticles ... Read more

A robust in vitro Anticancerc, Antioxidant and Antimicrobial Agents Based on New Metal-Azomethine Chelates Incorporating Ag(I),  VO(II)  and Pd(II) Cations: Probing the Aspects of DNA Interaction
A novel azomethine ligand (HNAP) [HNAP = 1-(Pyridin-3-yliminomethyl)-naphthalen-2-ol] and its Ag(I), Pd(II) and VO(II) chelates have been synthesized and structurally inspected using a wide range of spectroscopic and analytical tools, including infra-red (IR), ultraviolet-visible (UV-Vis) and 1H NMR spectroscopy techniques, CHN analysis, molar conductance, magnetic susceptibility, and thermogravimetric analysis. The molar conductance measurements reveal that the chelates are non-electrolytes. The ... Read more

Synthesis and Characterization of New Cr(III), Fe(III) and Cu(II) Complexes Incorporating Multi-Substituted Aryl Imidazole Ligand: Structural, DFT, DNA Binding, and Biological Implications
Designing new metal-based molecular antibiotics is an efficient approach to overcome the growing threat of antimicrobial resistance. In this paper, novel Cr(III), Fe(III) and Cu(II) complexes comprising substituted aryl imidazole ligand (MSEB), namely (2-(1-(2-hydroxyethyl)-4,5-diphenyl-1H-imidazole-2-yl)(4-bromophenol)) have been synthesized and characterized using infra-red (IR), ultraviolet-visible (UV-Vis) and 1H, 13C NMR spectroscopic techniques, together with elemental (CHN) and thermogravimetric analyses, molar conductance, and ... Read more