A5081765640- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- Inorganic and Organometallic Chemistry
- Thermal and Kinetic Analysis
- Boron Compounds in Chemistry
- Analytical Chemistry and Chromatography
- Insect Pest Control Strategies
- Crystal structures of chemical compounds
- Essential Oils and Antimicrobial Activity
- Chemical Reaction Mechanisms
- Insect-Plant Interactions and Control
- Botanical Research and Chemistry
- Seed Germination and Physiology
- Crystallography and molecular interactions
- Plant Pathogens and Fungal Diseases
- Agronomic Practices and Intercropping Systems
- Weed Control and Herbicide Applications
- Soybean genetics and cultivation
- Insect behavior and control techniques
- Allelopathy and phytotoxic interactions
- Organic Chemistry Cycloaddition Reactions
- Synthesis and biological activity
- Supramolecular Chemistry and Complexes
- Biodiesel Production and Applications
Lebanese University
2011-2024
Kut University College
2023
Rafik Hariri University
2017
Laboratoire de Chimie de Coordination
1996-2014
École de Technologie Supérieure
2014
Université Paris-Sud
2014
Agricultural Genetic Engineering Research Institute
2001-2009
Université d'Angers
1996
Abstract Herein, to develop the comprehension of microbiological activity metal complexes based on benzaldehyde‐N4‐thiosemicarbazone derivatives, we described synthesis, characterization copper(II), zinc(II) and cadmium(II) with vanillin‐4‐methylthiosemicarbazone (MTSVN) 3,4‐dihydroxybenzaldehyde‐4‐methylthiosemicarbazone (MTSDHB). The crystal structures [ZnCl 2 ] ( L1 C1 ) [CdBr (MTSDHB) .H O] L2C5 were determined by single X‐Ray diffraction method, central ion is coordinated through...
Triethoxysilylated borate clusters comprising the <italic>closo</italic>-decaborate cage were synthesized and immobilized into pores of SBA-15 mesoporous silica.
The reactions of Cu (II), Zn (II) and Cd chloride or bromide with ( E ) ‐ 1‐(3,4‐dimethoxybenzylidene)‐4‐methylthiosemicarbazone (MTSVT) lead to the formation new complexes. They were characterized by spectroscopic studies: IR, 1 H 13 C NMR. crystal structures compounds [MTSVT] L ), [ZnBr 2 ] [CdCl 3 [CdBr . O] 4 determined X‐ray diffraction. For complexes – , ion is coordinated through sulfur atom. All tested for their antifungal activity against human pathogenic fungi Candida albicans...
Objective: The aim of this work was to characterize the antioxidant properties and evaluate total phenol content leaves, bark, pericarp, pulp extracts Lebanese Annona squamosa Linn. (A. squamosa),, as well a screening secondary metabolites present in various plant parts studied.
 Methods: Two solvent systems were used for extraction: ethanol 80 % methanol %. activity different investigated using 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. Total Phenol Content (TPC) are determined...
The existence of antibiotic residues in edible products constitutes a health problem to the consumers. Reversed-phase high-performance liquid chromatography with diode array detection (HPLC–DAD) was optimized and validated for simultaneous determination florfenicol (FF), penicillin (PE), tetracycline (TC) dairy raw milk samples. these antibiotics carried out on HP-ODS Hypersil C18 (5μm, 125*4 mm) column at flow rate (1mL/min) temperature (35 ⁰C). extraction method includes deproteinization...
The copper complexes of furan oxime derivatives were found to be potent cytotoxic agents in both murine and human tissue cultured cell lines which suspended as well solid tumors. Mode action studies L1210 lymphoid leukemia cells showed that the compounds suppressed DNA, RNA protein synthesis after 60 min at 100 μM. Inhibition purine pyrimidine de novo syntheses, inhibition ribonucleoside reductase nucleoside kinase activities with DNA strand scission occurred. All these effects drug probably...
The synthesis of new 6-LB10 H13 (L = ligand) derivatives decaborane B10 H14 with different ligands was achieved by the opening cage reaction closo-decahydrodecaborate (NH4 )2 H10 in presence a strong acid (HNO3 or H2 SO4 ) organic
Nicotiana Tabacum; the annual herb; known as Tobacco from Solanaceae family was for its alkaloids and especially nicotine (NCT) content; smoking products, insecticides, anthelminthic activity clinically proven therapeutics are examples of uses. Herein two different methods were applied in an attempt to quantify total NCT content tabacum cultivated Lebanon. Total investigated through formation a complex with bromocresol green under simple spectrophotometric method. Whilst HPLC-DAD choice...
Background: Transfer hydrogenation methods that employ non-H 2 hydrogen sources have evolved as an attractive alternative for conventional approaches. Objective: In this study, we aimed at developing optimized conditions to induce the selective transfer reduction of aromatic alkynes catalyzed by PdCl (PPh 3 ) and using formic acid hydride source. Methods: The effect various reaction parameters, such nature amount catalyst, H-donor/base couple, time temperature, solvent on outcome alkyne were...
Propolis samples were collected from four different regions of Lebanon characterized by high biodiversity and honey production. The analyzed for their total phenolic contents (TPC), flavonoid (TFC), chemical profiles, antioxidant activity. TPC was determined using Folin-Ciocalteu method while the TFC AlCl3 method. activity propolis examined two methods, namely free radical scavenging assay reducing ability. profiles assessed thin-layer chromatography (TLC), UV-Vis, gas chromatography/mass...
Datura metel (Solanaceae) from south Lebanon. The different parts of this plant contain the tropane alkaloids atropine (AT) and scopolamine (SC), which are naturally muscarinic receptor antagonists. A method has been developed for extraction HPLC-UV analysis AT SC in D. metel, namely seeds, capsule, leaf, stem. This analytical was validated gave a good detection response with linearity over dynamic range 0.03‑0.17 mg mL−1 recovery 93.9–108.76%. Limit (LOD) limit quantification (LOQ) values...