A5005640114- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Synthetic Organic Chemistry Methods
- Crystallography and molecular interactions
- Fuel Cells and Related Materials
- Polysaccharides and Plant Cell Walls
- Microbial Metabolites in Food Biotechnology
- Membrane Separation Technologies
- Chemical Synthesis and Analysis
- Seaweed-derived Bioactive Compounds
- Membrane-based Ion Separation Techniques
- Perovskite Materials and Applications
- Synthesis and Reactions of Organic Compounds
- Dendrimers and Hyperbranched Polymers
- Advanced Cellulose Research Studies
- Synthesis of β-Lactam Compounds
- Magnetism in coordination complexes
- Synthesis and Properties of Aromatic Compounds
- Membrane Separation and Gas Transport
- Polysaccharides Composition and Applications
- Luminescence and Fluorescent Materials
- Organic and Molecular Conductors Research
- Microfluidic and Capillary Electrophoresis Applications
- Organoboron and organosilicon chemistry
- Metal complexes synthesis and properties
Lebanese University
2018-2022
Rafik Hariri University
2019
Université Bretagne Loire
2017
Université de Rennes
2012-2017
Centre National de la Recherche Scientifique
2011-2017
Institut des Sciences Chimiques de Rennes
2011-2017
Ain Shams University
1997
On the basis of reported radical neutral complex [Au(Et-thiazdt)2] (Et-thiazdt = N-ethyl-1,3-thiazoline-2-thione-4,5-dithiolate), a series single-component conductors derived from [Au(Et-thiazdt)2], also noted as [AuS4(═S)2], has been developed, by replacing outer sulfur atoms thiazoline-2-thione rings oxygen and/or coordinating selenium toward corresponding diselenolene complexes. Comparison X-ray crystal structures and transport properties four isostructural complexes, [AuS4(═O)2],...
Abstract A new enantiopure cyclometallated iridium complex bearing a [4]helicenic ‐coordinating and two dfppy (2‐(2,4‐difluorophenyl)‐pyridyl) ligands was prepared. This displayed long‐lived phosphorescence both in solution the solid state. Its chiroptical properties, namely electronic circular dichroism circularly polarized luminescence, were also examined. Comparison with former chiral complexes enabled assignment of Δ Ir ‐(−) Λ ‐(+) absolute configurations.
The present study aims to investigate the properties of biopolymers extracted from a Lebanese onion non edible plant. extraction was performed under mild conditions by varying percentage ultra-sound (US) treatment duration total time 30 min (0, 50, 100% US). extracts were characterized using FTIR, SEC, GC-MS, TGA, and DSC analyses. composition determined carbohydrate content protein measurements. thermal analyses indicate that all samples have high stability. antioxidant activities...
This study aimed at evaluating the impact of structure several new olefin metathesis homogeneous catalysts on performances a membrane reactor running in discontinuous mode and equipped with nanofiltration that was stable toluene. A set tailor-made ruthenium-based precatalysts were prepared first objective enhancing retention precatalyst, is source active catalyst, by organic solvent using commercial polyimide (Starmem 122). These prototype designed taking into account both molecular weight...
This study was aimed at developing a synthetic strategy of gradual increase in the steric bulk ruthenium-based olefin metathesis pre-catalysts for organic solvent nanofiltration (OSN) processes. A series five enlarged second-generation Hoveyda type prepared and characterized. The structural modifications were performed on benzylidene ligand an unmodified (II) pre-catalyst. catalytic activity catalysts evaluated model reaction ring closing (RCM). All showed good stabilities activities...
The development of chemical reactions catalysed by homogeneous organometallic complexes has allowed a significant breakthrough in synthesis chemistry, but now research axes must integrate catalysts recycling at the early stage their conception.Catalyst nanofiltration organic solvent (OSN) may represent an innovative route since this separation process molecular level is low energy consumer.Challenges for OSN are membrane stability solvents and mastering filtration conditions.Molecular...
Ultrafiltration (UF) is a sustainable membrane separation technique. It could be useful for the concentration/purification of bio-sourced molecules that are extracted either by pure ethanol or water/ethanol mixtures. Nevertheless, process optimization requires an in-depth understanding transfer mechanisms solute through membranes, especially charged solutes, nowadays not sufficiently documented. Previous studies achieved in aqueous media have shown rejection solutes UF involves at least...
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