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Browsing Department of Chemistry - Faculty Publications by Title

Now showing items 98-117 of 244

Fabrication of one-dimensional organic nanostructures using anodic aluminum oxide templates

Al-Kaysi R.O.; Ghaddar T.H.; Guirado G. (Hindawi Publishing Corporation; NEW YORK410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA, 2009)

Organic nanostructures are new comers to the fields of nanoscience and nanotechnology. In recent years novel methods for controlling the growth and uniformity of one-dimensional (1D) organic nanostructures (nanowires and ...
Facile preparation of the tosylhydrazone derivatives of a series of racemic trans-3,4-substituted cyclopentanones

Bouhadir K.H.; Aleiwe B.A.; Fares F.A. (BASELPOSTFACH, CH-4005 BASEL, SWITZERLAND, 2012)

We report the synthesis and characterization of a variety of trans-3,4-substituted cyclopentanones and the corresponding tosylhydrazone derivatives starting with diethyl fumarate. Protection of the keto group followed by ...
Facile Syntheses of Novel Benzo-1,3-dioxolo-, Benzothiazolo-, Pyrido-, and Quinolino-fused 5 H -Benzo[ d ]-pyrazolo[5,1-b ][1,3]-oxazines and 1 H -Pyrazoles

Avila B.; Solano D.M.; Haddadin M.J.; Kurth M.J. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2011)

A number of novel benzo-1,3-dioxolo-, benzothiazolo-, pyrido-, and quinolino-fused 5H-benzo[d]pyrazolo[5,1-b][1,3]-oxazines and 1H-pyrazoles were synthesized utilizing an easy and effective N,N-bond forming heterocyclization ...
Facile synthesis of poly-(L-lysine) dendrimers with a pentaaminecobalt(III) complex at the core

Al-Hamra M.; Ghaddar T.H. (OXFORDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2005)

The synthesis of second and third generation dendrimers based on poly-(L-lysine) with a pentaamine cobalt(III) metal complex at the core is described. The synthesis and purification of these dendrimers were facilitated by ...
Fe 0-based trimetallic systems for the removal of aqueous diclofenac: Mechanism and kinetics

Ghauch A.; Assi H.A.; Baydoun H.; Tuqan A.M.; Bejjani A. (LAUSANNEPO BOX 564, 1001 LAUSANNE, SWITZERLAND, 2011)

The performance of amended micrometric iron particles (Fe 0) in trimetallic systems for the removal of aqueous diclofenac (DF) was investigated. Tested additive metals were Pd, Cu and Ni. Trimetallic systems were shown ...
Fluorescence modulation of 1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6- heptadiene-3,5-dione by silver nanoparticles and its possible analytical application

Patra D.; Malaeb N.N. (MALDENCOMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA, 2012)

The effects of silver nanoparticles on the photophysical properties of 1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione, popularly known as curcumin, have been investigated using optical absorption and fluorescence ...
Fluorescence study of ionic intercalation-de-intercalation in the reaction-diffusion mediated polymorphic transition of a class of nanolayered material

Rahbani J.; Al-Ghoul M. (STAFA-ZURICHLAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND, 2013)

The mechanism of the intercalation-de-intercalation processes during the formation of α- Co(OH)2 and its conversion to β-Co(OH)2 is carefuly examined using a new non-invasive technique in a gel matrix. The incorporation ...
Fluorescent detection of anions by dibenzophenazine-based sensors

El-Ballouli A.O.; Zhang Y.; Barlow S.; Marder S.R.; Al-Sayah M.H.; Kaafarani B.R. (OXFORDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2012)

Binding studies of two sulfonamide-functionalized dibenzophenazine-based sensors are reported. Spectroscopic studies showed that both sensors are effective fluorescent turn-on sensors for several anions. Both sensors showed ...
Fluorometric sensing of DNA using curcumin encapsulated in nanoparticle-assembled microcapsules prepared from poly(diallylammonium chloride-co-sulfur dioxide)

Patra D.; Aridi R.; Bouhadir K. (WIENSACHSENPLATZ 4-6, PO BOX 89, A-1201 WIEN, AUSTRIA, 2013)

We report on the synthesis of microcapsules (MCs) containing self-assembled nanoparticles formed from poly[diallylammonium chloride-co-(sulfur dioxide)] in the presence of citrate and silica sol nanoparticles. The MCs are ...
Fractal structures in two-metal electrodeposition systems I: Pb and Zn

Nakouzi E.; Sultan R. (MELVILLECIRCULATION and FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA, 2011)

Pattern formation in two-metal electrochemical deposition has been scarcely explored in the chemical literature. In this paper, we report new experiments on zinc-lead fractal co-deposition. Electrodeposits are grown in ...
Fractal structures in two-metal electrodeposition systems II: Cu and Zn

Nakouzi E.; Sultan R. (MELVILLECIRCULATION and FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA, 2012)

In this second part of our study on fractal co-electrochemical deposition, we investigate the Cu-Zn system. Macroscopic and microscopic inspection shows a sensitive dependence of the morphology of the final pattern on ...
From crystals to columnar liquid crystal phases: Molecular design, synthesis and phase structure characterization of a series of novel phenazines potentially useful in photovoltaic applications

Leng S.; Chan L.H.; Jing J.; Hu J.; Moustafa R.M.; Van Horn R.M.; Graham M.J.; Sun B.; Zhu M.; Jeong K.-U.; Kaafarani B.R.; Zhang W.; Harris F.W.; Cheng S.Z.D. (CAMBRIDGETHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND, 2009)

It is known that in photovoltaic applications, columnar discotic liquid crystal (LC) phases of conjugated compounds are useful to align the molecules for improving their charge mobilities. However, conjugated compounds are ...
Front propagation in patterned precipitation. 3. Composition variations in two-precipitate stratum dynamics

Msharrafieh M.; Al-Ghoul M.; Batlouni H.; Sultan R. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2007)

This paper is a study of the composition dynamics of Liesegang band strata of Co(OH)2 and Ni(OH)2 from NH4OH, with redissolution by complex formation with ammonia. At a fixed time, the cobalt hydroxide composition was found ...
Generalized hydrodynamics and microflows

Al-Ghoul M.; Eu B.C. (COLLEGE PKONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA, 2004)

A mathematical model was developed within the framework of generalized hydrodynamics for the description of flows in microsystems where the Knudsen number is largest and the aspect ratio is not so small. The model was based ...
Generalized hydrodynamics of reaction-diffusion systems and dissipative structures

Al-Ghoul M. (LONDON6 CARLTON HOUSE TERRACE, LONDON SW1Y 5AG, ENGLAND, 2004)

Generalized hydrodynamics (GH) are derived and used to describe a reaction-diffusion system. The derived GH equations are hyperbolic and are shown to be more general and more suitable than the conventional parabolic ...
High charge-carrier mobility in an amorphous hexaazatrinaphthylene derivative

Kaafarani B.R.; Kondo T.; Yu J.; Zhang Q.; Dattilo D.; Risko C.; Jones S.C.; Barlow S.; Domercq B.; Amy F.; Kahn A.; Bredas J.-L.; Kippelen B.; Marder S.R. (, 2005)

An isomeric mixture of a tris(pentafluorobenzyl ester) derivative of hexaazatrinaphthylene forms stable amorphous films with an effective charge-carrier mobility of 0.02 cm2-Vs, while the pure 2,8,15-isomer exhibits widely ...
High photo-currents with a zwitterionic thiocyanate-free dye in aqueous-based dye sensitized solar cells

Fayad, R.; Shoker, T.A.; Ghaddar, T.H. (Royal Society of Chemistry, 2016)

We report a new water soluble and stable thiolate/disulfide redox couple (T-/DS) and its use with a new zwitterionic and thiocyanate-free dye (T169) in a 100% aqueous electrolyte system. A DSSC incorporating T169 and the ...
Hydrogenation of dimethyl carbonate to methanol by trans -[Ru(H) 2(PNN)(CO)] catalysts: DFT evidence for ion-pair-mediated metathesis paths for C-OMe bond cleavage

Hasanayn F.; Baroudi A.; Bengali A.A.; Goldman A.S. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2013)

Milstein and co-workers have reported that the pincer complexes trans-[Ru(H)2(PNN)(CO)] catalyze the unprecedented homogeneous hydrogenation of dimethyl carbonate to methanol. A mechanism for this reaction was proposed on ...
Ibuprofen removal by heated persulfate in aqueous solution: A kinetics study

Ghauch A.; Tuqan A.M.; Kibbi N. (LAUSANNEPO BOX 564, 1001 LAUSANNE, SWITZERLAND, 2012)

Thermally activated persulfate (TAP) is discussed in the literature as remediation option for contaminated effluents. The present paper assesses the impact of selected operational parameters on the involved oxidative ...
Immobilized polyoxometalates onto mesoporous organically-modified silica aerogels as selective heterogeneous catalysts of anthracene oxidation

Al-Oweini R.; Aghyarian S.; El-Rassy H. (Kluwer Academic Publishers; DORDRECHTVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS, 2012)

Immobilized molybdovanadophosphoric acids onto organically surface-modified silica aerogels were successfully prepared and investigated in heterogeneous catalysis of anthracene oxidation. The catalysts were obtained by ...

Now showing items 98-117 of 244

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Browsing Department of Chemistry - Faculty Publications by Title

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