Chemistry & Earth Sciences: Recent submissions
Now showing items 381-400 of 614
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Computational insights into the photocyclization of diclofenac in solution: Effects of halogen and hydrogen bonding
( Royal Society of Chemistry , 2016 , Article)The effects of noncovalent interactions, namely halogen and hydrogen bonding, on the photochemical conversion of the photosensitizing drug diclofenac (DCF) in solution were investigated computationally. Both explicit and ... -
Controlled Prelithiation of Silicon Monoxide for High Performance Lithium-Ion Rechargeable Full Cells
( American Chemical Society , 2016 , Article)Despite the recent considerable progress, the reversibility and cycle life of silicon anodes in lithium-ion batteries are yet to be improved further to meet the commercial standards. The current major industry, instead, ... -
Electronic spectroscopy, study of chemical reactions
( Elsevier , 2016 , Book chapter)[No abstract available] -
Synthesis, Vibrational (IR), Thermal analysis and Quantumchemical Study of a Series of Cyclic Chalcones
( Wiley-Blackwell , 2016 , Article)In this work, the influence of expanding the cyclic ring (adding methylene group) on the properties of three dimethylamino chalcones derivatives (1-3), is addressed, using a combined experimental (vibrational spectra (IR), ... -
Gravity investigations of recent sinkholes and karst pits of Dahal Al-Hamam, State of Qatar
( Springer Verlag , 2016 , Article)Gravity prospecting is a very useful geophysical technique for the investigation of karst subsurface features, in urban areas, which are a common natural hazard in several parts of the world. Gravity data were used to ... -
Doping of Large Ionization Potential Indenopyrazine Polymers via Lewis Acid Complexation with Tris(pentafluorophenyl)borane: A Simple Method for Improving the Performance of Organic Thin-Film Transistors
( American Chemical Society , 2016 , Article)Molecular doping, under certain circumstances, can be used to improve the charge transport in organic semiconductors through the introduction of excess charge carriers which can in turn negate unwanted trap states often ... -
Analysis of aerosol absorption properties and transport over North Africa and the Middle East using AERONET data
( Copernicus GmbH , 2016 , Article)In this paper particle categorization and absorption properties were discussed to understand transport mechanisms at different geographic locations and possible radiative impacts on climate. The long-term Aerosol Robotic ... -
Hybrid electro-optic plasmonic modulators based on directional coupler switches
( Springer Verlag , 2016 , Article)By breaking the diffraction limit, plasmonics enable the miniaturization of integrated optical signal processing units in a platform compatible with traditional CMOS technology. In such architectures, modulators and switches ... -
Integrated plasmonic refractometric sensor using Fano resonance
( Institute of Physics Publishing , 2017 , Article)We propose a plasmonic refractometric sensor that is based on Fano resonances excited in a resonant rectangular cavity coupled to a metal-insulator-metal bus waveguide. The properties of the resonances are controlled by ... -
Computational molecular perspectives on the interaction of propranolol with ?-cyclodextrin in solution: Towards the drug-receptor mechanism of interaction
( Elsevier B.V. , 2017 , Article)Elucidating the mechanism of interaction between a drug molecule and its corresponding receptors is of great importance. It had been demonstrated that Propranolol as a β-blocker interacts with β-adrenoreceptors through ... -
Enhancement of gemcitabine against pancreatic cancer by loading in mesoporous silica vesicles
( Elsevier B.V. , 2017 , Article)Gemcitabine (Gem) is currently the first-line chemotherapeutic drug in management of pancreatic cancer, however the therapeutic efficacy of Gem is limited due to its short half-life and poor cell membrane permeability. ... -
Intramolecular versus intermolecular hydrogen bonds in a novel conjugated dimethylamino-benzylidene-amino-2-naphthoic acid Schiff base
( Springer Verlag , 2017 , Article)A new compound based on the D-π-A concept, where D = dimethylamino-phenyl and A = naphthoic acid, separated by an imine motif, was designed, synthesized and characterized. The spectral, energetics, and structural characteristics ... -
Synthesis and characterization of electrically conductive poly(aniline-co-3-bromoaniline) nanocomposites
( Springer New York LLC , 2017 , Article)Poly(aniline-co-3-bromoaniline) copolymers with varying compositions of the monomers have been prepared in this work by copolymerization of aniline and 3-bromoaniline using ammonium persulphate as oxidant. Structure and ... -
Tuning the electrical properties of polyaniline by copolymerization with o-bromoaniline
( World Scientific Publishing Co. Pte Ltd , 2017 , Article)Polyaniline, poly(o-bromoaniline) and poly(aniline-co-o-bromoaniline)s have been prepared by chemical oxidative polymerization methods. A series of poly(aniline-co-o-bromoaniline) derivatives has been prepared by the ... -
Treatment of Soil-Washing Effluents Polluted with Herbicide Oxyfluorfen by Combined Biosorption-Electrolysis
( American Chemical Society , 2017 , Article)The treatment of soil-washing effluents polluted with herbicide oxyfluorfen is studied using a combined process consisting of biosorption and electrolysis. Results show that oxyfluorfen is very efficiently removed from ... -
Delicate Structural Control of Si-SiOx-C Composite via High-Speed Spray Pyrolysis for Li-Ion Battery Anodes
( American Chemical Society , 2017 , Article)Despite the high theoretical capacity, silicon (Si) anodes in lithium-ion batteries have difficulty in meeting the commercial standards in various aspects. In particular, the huge volume change of Si makes it very challenging ... -
A Cross-Coupling Approach to Amide Bond Formation from Esters
( American Chemical Society , 2017 , Article)A palladium-catalyzed cross-coupling between aryl esters and anilines is reported, enabling access to diverse amides. The reaction takes place via activation of the C-O bond by oxidative addition with a Pd-NHC complex, ... -
Iron and cobalt salicylaldimine complexes as catalysts for epoxide and carbon dioxide coupling: effects of substituents on catalytic activity
( Springer International Publishing , 2017 , Article)The synthesis and characterization of substituted ONNO-donor salen-type Schiff base complexes of general formula [MIII(L)Cl] (L�=�Schiff base ligand, M�=�Fe, Co) is reported. The complexes have been applied as catalysts ... -
Crystal structure of (E)-furan-2-carbaldehyde O-benzoyloxime
( International Union of Crystallography , 2017 , Article)In the title compound, C12H9NO3, the benzoate and furan rings are almost coplanar, making a dihedral angle of 11.68 (9)°. The twist angle between the –COO group and the benzene ring is only 2.79 (16)°. In the crystal, ... -
Carbon Dioxide Solubility in Phosphonium-, Ammonium-, Sulfonyl-, and Pyrrolidinium-Based Ionic Liquids and their Mixtures at Moderate Pressures up to 10 bar
( American Chemical Society , 2017 , Article)Carbon dioxide solubility in four ionic liquids (ILs) of different families with different cationic-anionic groups (tributylmethylphosphonium formate, butyltrimethylammonium bis(trifluoromethyl sulfonyl) imide, ...
