Khalaf Ali Fayez Abuamra

استاذ - أستاذ متفرغ

كلية العلوم

العنوان: قسم النبات والميكروبيولوجى -كلية العلوم -جامعة سوهاج



المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: Schiff base

2018-09-03 09:31:48 الكلمات المفتاحية semiconductor material, thermoelectric, complexes, Schiff base, magneticnanoparticles, NiO, CuO, IR, TGA,
The synthesis of CuO and NiO nanoparticles by facile thermal decomposition of metal-Schiff base complexes and an examination of their electric, thermoelectric and magnetic Properties
In this study, CuO and NiO NPs have been synthesized by facile thermal decomposition of Schiff base complexes and their physical properties have been examined. The synthesized CuO and NiO NPs are crystallized in polycrystalline monoclinic and cubic structures with average particle size 17 ± 0.4 and 62 ± 1 nm, respectively. The electrical conductivity measurements confirm that the conduction ... إقراء المزيد

2018-08-29 12:29:44 الكلمات المفتاحية Schiff base, base hydrolysis,
Kinetics of base hydrolysis of novel low spin Fe(II) amino acid Schiff base chelates – Hydrophobic structural effects
The reactivity against OH− ion of some novel Fe(II) complexes of Schiff base ligands derived from salicylaldehyde or _o_‐hydroxynaphth‐aldehyde and some variety of amino acids has been examined in aqueous and aqua‐ethanol mixtures. The rate law and relevant mechanism were assumed. Base hydrolysis kinetics measurements revealed pseudo‐first‐order doubly stage rates because of the presence of mer‐ and fac‐isomers. The evaluated ... إقراء المزيد

2018-09-27 05:23:13 الكلمات المفتاحية Schiff base,
A review on versatile applications of transition metal complexes incorporating Schiff bases
Schiff bases and their complexes are versatile compounds synthesized from the condensation of an amino compound with carbonyl compounds and widely used for industrial purposes and also exhibit a broad range of biological activities including antifungal, antibacterial, antimalarial, antiproliferative, anti-inflammatory, antiviral, and antipyretic properties. Many Schiff base complexes show excellent catalytic activity in various reactions and in the presence of ... إقراء المزيد

2018-09-27 05:21:06 الكلمات المفتاحية Schiff base,
Kinetics of acid hydrolysis and reactivity of some antibacterial hydrophilic iron (II) imino-complexes
Kinetic study of acid hydrolysis of some hydrophilic Fe(II) Schiff base amino acid complexes with antibacterial properties was performed using spectrophotometry. The Schiff base ligands were derived from sodium 2-hydroxybenzaldehyde-5-sulfonate and glycine, L-alanine, L-leucine, L-isoleucine, DL-methionine, DL-serine, or L-phenylalanine. The reaction was studied in aqueous media under conditions of pseudo-first order kinetics. Moreover, the acid hydrolysis was studied at different ... إقراء المزيد