abdelraheem_mohamed

عبدالرحيم محمد احمد محمود

مدرس -

كلية العلوم

العنوان: جامعة سوهاج - كلية العلوم - قسم الكيمياء

1

إعجاب

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: Antimicrobial activity


2019-08-09 10:54:55 الكلمات المفتاحية Imine complexes, DFT Calculations, Antimicrobial activity, DNA interaction, anticancer activity,
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 ... إقراء المزيد

Some New  Ag(I),  VO(II)  and Pd(II) Chelates encompassing Tri-dentate Imine Ligand: Design, synthesis, Structure elucidation and DFT calculations for DNA Interaction, Antimicrobial, Anticancer Activities and Molecular Docking Studies
Some new complexes derived from VO(II), Ag(I) and Pd(II) metal ions and HNA imine ligand (L) _i.e. _(2-[(6-Allylidene-2-hydroxy-cyclohexa-1,3-dienylmethylene)-amino]-benzoic acid) have been prepared and their structures are elucidated _via_ molar conductance, elemental analyses, IR, NMR, magnetic susceptibility estimations and electronic spectral studies. Moreover, stability constants of the synthesized complexes were evaluated utilizing spectrophotometric technique. On the basis of molar conductance and ... إقراء المزيد

2018-11-22 14:16:13 الكلمات المفتاحية Antimicrobial activity, DNA interaction, Amino acids, Catalytic activity, Copper(II), TGA, IR,
Complexation of Schiff bases incorporating of Salicylaldehyde Derivatives and Amino Acids to Copper(II) as an effective strategy for antimicrobial activity improvement, DNA Interaction and catalytic activity
Five Cu(II) complexes are tridentate Schiff bases amino acids ligands derived from condensation 3–methoxysalicylaldehyde (MS) or 4-diethylaminosalicylaldehyde (DS) with α-amino acids (L-phenylalanine(P), L-histidine (H), DL-tryptophane (T)). All ligands are analyzed by 1HNMR and 13CNMR. The investigated complexes have been prepared and characterized by elemental analysis, infrared spectra, ultraviolet-visible and thermal analysis in dynamic air atmosphere (40ml / min) at a ... إقراء المزيد

Some new nano-sized Fe(II), Cd(II) and Zn(II) Schiff base complexes : Sonochemical synthesis, characterization, DNA interaction, in vitro antimicrobial and anticancer activities
The complexes of Fe(II), Cd(II) and Zn(II) with Schiff base derived from 2-amino-3-hydroxypyridine and 3-methoxysalicylaldehyde have been prepared. Melting points, decomposition temperatures, Elemental analyses, TGA, conductance measurements, infrared (IR) and UV–Visible spectrophotometric studies were utilized in characterizing the compounds. The UV–Visible spectrophotometric analysis revealed 1:1 (metal-ligand) stoichiometry for the three complexes. In addition to, the prepared complexes have been used ... إقراء المزيد

Sonochemical synthesis, DNA binding, antimicrobial evaluation and in vitro anticancer activity of nano-sized Cu(II), Co(II) and Ni(II) chelates  as precursors for metal oxides
Three new nano sized Cu(II), Co(II) and Ni(II) complexes of imine ligand derived from the condensation of 2-amino-3-hydroxypyridine and 3-methoxysalicylaldehyde have been prepared and investigated using various chemical techniques such as NMR, elemental analysis, molar conductance, IR, electronic spectra, TGA and magnetic momentmeasurements. The obtained chemical analysis data showed that the synthesis of 1:1 (metal:ligand) ratio and octahedral geometry was ... إقراء المزيد

Some new nano-sized Cr(III), Fe(II), Co(II), and Ni(II) complexes: Structural characterization, electrochemical, antioxidant, antimicrobial, antiviral assessment and DNA interaction
To estimate the biological preference of synthetic small drugs towards DNA target, new metal based chemotherapeutic agents of nano-sized Cr(III), Fe(II), Co(II) and Ni(II) Schiff base complexes having N,N,O donor system were synthesized and thoroughly characterized by physic-chemical techniques. The redox behavior of the Cr(III), Fe(II) and Co(II) complex was investigated by electrochemical method using cyclic voltammetry. IR results proven ... إقراء المزيد

Design and nonlinear optical properties (NLO) using DFT approach of new chelates for DNA interaction, antimicrobial, anticancer activities and molecular docking studies
In recent years, metals based antitumor complexes have played a vital role in chemotherapy. Therefore, in this study, some new imine Cr(III), VO(II) and Ni(II) complexes incorporating ESAP imine ligand (2-Ethoxy-6-((2-hydroxy-phenylimino)-methyl)-phenol were designed and synthesized. The investigated complexes were fully characterized by micro analysis, infrared, electronic spectra, thermal analysis(TGA), conductivity as well as magnetic susceptibility measurements. Moreover, the stability constants ... إقراء المزيد

2018-09-04 06:45:46 الكلمات المفتاحية VO(II), thermal analyses, Antimicrobial activity, DNA interaction, imine ligand, anticancer activity,
Three novel Ni(II), VO(II) and Cr(III) mononuclear complexes: Synthesis, structural characterization, DNA interaction, antimicrobial evaluation and anticancer activity
Three novel Cr(III),VO(II) and Ni(II) imine complexes derived from the condensation of 2‐aminophenol (AP) with 2‐hydroxynaphthaldehyde (HN) were synthesized. The prepared HNAP imine ligand and its complexes were investigated via various physicochemical tools. The results suggest that the parent ligand behaves as a dibasic tridentate ONO ligand, when coordinated to Cr(III) in octahedral and to Ni(II) in tetrahedral geometry. In ... إقراء المزيد

2018-09-16 13:40:18 الكلمات المفتاحية TGA, NMR, IR, Calf thymus DNA, Antimicrobial activity, Synthesis, characterization, Nano particle, DNA interaction,
Nano structure Iron (II) and Copper (II) Schiff base complexes of a NNO-tridentate ligand as new antibiotic agents: spectral, thermal behaviors and DNA binding ability
Complexes of Fe (II) and Cu (II) with a tridentate Schiff base, 2-((z)-(pyridine-2-ylimino) methyl) naphthalene1-ol derived from 2-hydroxy-1-napthaldehyde and 2-aminopyridine were synthesized. Both the ligand and its complexes were characterized on the basis of microanalysis, melting point, 1H and 13CNMR, molar conductivity, thermal analysis, IR and UV/Vis spectral studies. From analytical data, the stoichiometry of the complexes was found to ... إقراء المزيد

2018-10-05 11:42:34 الكلمات المفتاحية Antimicrobial activity, TGA, IR, DNA interaction, imidazoles, Ternary complexes, Glutamine, glutaric and glutamic acid,
Desighn, Characterization and Biological activity of new mixed ligand transition metal complexes of glutamine, glutaric and glutamic acid with nitrogen based ligands.
A new series of Cu(II), Co(II), Ni(II) and Fe(II) ternary complexes of glutamine, glutaric and glutamic acid with imidazole derivatives have been synthesized. The nature of bonding and the stereochemistry of the complexes have been deduced from elemental analyses, infrared, electronic spectra, conductivity measurements and thermogravimetric analysis. The structure of [Co(glu)(IMI)2] and [Fe(glu)(IMI)2(H2O)2] complexes was validated using quantum mechanics calculations ... إقراء المزيد