Browsing Τμήμα Χημείας / Department of Chemistry by Title
Now showing items 522-541 of 1302
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Article
The Importance of Microstructure in Determining Polaron Generation Yield in Poly(9,9-dioctylfluorene)
(2019)Understanding the structure–property relationships that govern exciton dissociation into polarons in conjugated polymers is key in developing materials for optoelectronic applications such as light-emitting diodes and solar ...
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An improved synthesis of diiodonoradamantane
(2009)Τhe synthesis of 3,7-diiodo-tricyclo[3.3.1.03,7]nonane, the main precursor of noradamantene, by iodination of the corresponding diol via its dimesylate affords a threefold higher yield than the direct iodination of the ...
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Article
Improving the Cd(ii) detection capability of a new anionic rare earth metal-organic framework based on a [RE6(μ3-OH)8]10+secondary building unit: an ion-exchange approach towards more efficient sensors
(Royal Society of Chemistry, 2020-07-01)The synthesis and characterization of a new family of rare earth (RE) MOFs based on a hexanuclear (RE3+)6 secondary building unit (SBU) and the angular dicarboxylic ligand 4,4′-oxybisbenzoic acid (H2OBA) with the formula ...
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In silico exploration for identifying structure-activity relationship of MEK inhibition and oral bioavailability for isothiazole derivatives
(2010)In this study, quantitative structure-activity/property models are developed for modeling and predicting both MEK inhibitory activity and oral bioavailability of novel isothiazole-4-carboxamidines. The models developed are ...
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In Situ Determination of Surface Carbon Species Formed on Rh/Al2O3 During CO/H2 Reaction by using Various Transient and Isotopic Methods
(1993)The evolution of surface species formed during the CO/H2 reaction at 220°C on a 1wt% Rh/Al2O3 catalyst was studied by transient methods using both mass spectrometry and FTIR. There is a very small amount of active carbon, ...
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In situ polymerised polyamide 6/sepiolite nanocomposites: Effect of different interphases
(2014)The success of a polymer/clay nanocomposite depends from a number of factors including the intrinsic properties of the clay, nanofiller dispersion and orientation, matrix/filler interactions, etc. This manuscript focuses ...
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Article
Inactivation of the glutamine/amino acid transporter ASCT2 by 1,2,3-dithiazoles: Proteoliposomes as a tool to gain insights in the molecular mechanism of action and of antitumor activity
(2012)The ASCT2 transport system catalyses a sodium-dependent antiport of glutamine and other neutral amino acids which is involved in amino acid metabolism. A library of 1,2,3-dithiazoles was designed, synthesized and evaluated ...
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Article
Incorporation of zinc in an aluminophosphate microporous phase
(1985)A new molecular sieve with formula Zn0.06Al 0.96PO4 has been prepared, which has a structure similar to that of the aluminophosphate ALPO-5
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Increased radiation exposure by granite used as natural tiling rock in Cypriot housesAAA
(2007)This paper deals with gamma dose rates in Cypriot houses with and without granite flooring and compares the average radiation doses with one another. The additional radiation exposure due to granite flooring is compared ...
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Article
Inducing single-molecule magnetism in a family of loop-of-loops aggregates: Heterometallic Mn40Na4 clusters and the homometallic Mn44 analogue
(2010)The syntheses, crystal structures, and magnetic properties of a new family of heterometallic Mn40Na4 and homometallic Mn44 loop-of-loops aggregates are reported. The reactions of [Mn3O(O 2CMe)6(py)3]•py with 1,3-propanediol ...
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Article
Induction of mesoporosity in ALPO-5. Treatment with silicon tetrachloride
(1989)Reaction of microporous AlPO4 (ALPO-5) with SiCl4 vapour in a nitrogen atmosphere at 870 K results in the partial isomorphous substitution of P predominantly by Si. The product has fewer but stronger acid sites than the ...
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Industrial H2-SCR of NO on a novel Pt/MgO-CeO2 catalyst
(2007)We describe here the performance of a novel MgO-CeO2-supported Pt (0.1 wt%) catalyst towards the selective conversion of NO into N2 (SN2 > 80%) by using H2 (H2-SCR) under process conditions similar to those encountered in ...
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Industrial NOx control via H2-SCR on a novel supported-Pt nanocatalyst
(2011)We describe here the performance of a novel MgO-CeO2-supported Pt nanocatalyst (∼1.5nm mean Pt particle size) towards the selective conversion of NO (XNO>90%) into N2 (SN2>80%) using H2 (H2-SCR) in the low-temperature range ...
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Article
Influence of ligand positional isomerism on the molecular and supramolecular structures of cobalt(II)-phenylimidazole complexes
(2019)In a study to evaluate the impact of flexible positional isomeric ligands on the coordination geometry and self-assembly process of 3d metal complexes, the synthesis of eight new cobalt(II) complexes with the 2-phenylimidazole ...
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Article
Influence of nanoreactor environment and substrate location on the activity of horseradish peroxidase in olive oil based water-in-oil microemulsions
(2011)Oxidative enzymatic reactions using horseradish peroxidase (HRP) were carried out in water-in-oil (w/o) microemulsions composed of olive oil/lecithin/1-propanol/water, a model biomimetic system. The substrates used (gallic ...
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Article
Influence of oxychlorination treatments on the redox and oxygen storage and release properties of thermally aged Pd-Rh/CexZr1-xO 2/Al2O3 model three-way catalysts
(2005)Model Pd-Rh/Al2O3 three-way catalysts with and without CexZr1-xO2 as oxygen storage component have been compared in their fresh, thermally aged and oxychlorinated treated surface states to determine the potential regenerating ...
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The influence of reaction temperature on the chemical structure and surface concentration of active NOx in H2-SCR over Pt/MgO{single bond}CeO2: SSITKA-DRIFTS and transient mass spectrometry studies
(2008)Steady-state isotopic transient kinetic analysis (SSITKA), transient isothermal, and temperature-programmed surface reaction in H2 (H2-TPSR) techniques coupled with online mass spectroscopy (MS) and in situ diffuse reflectance ...
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Infrared spectra of some thin amorphous films of MoO3-In2O3 deposited by vacuum evaporation
(1989)The infrared absorption spectra of vacuum-evaporated MoO3-In2O3 thin films are reported for a series of films of varying compositions within the spectral range 4000 to 400 cm-1 and interpreted in relation to the spectrum ...
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Article
Infrared spectroscopic study of vacuum evaporated amorphous thin films of MoO3-SiO
(1990)A series of amorphous MoO3-SiO thin films of varying compositions were investigated by infrared spectroscopy. In some cases, a shift in band frequency was observed. Some new peaks appeared when SiO was mixed in MoO3. These ...
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Article
Inhibition of mitogen-activated protein kinase (MAPK) and cyclin-dependent kinase 2 (Cdk2) by platinum(II) phenanthroline complexes
(2011)Inhibition of protein kinases in the fight against disease remains a constant challenge for medicinal chemists, who have screened multitudes of predominantly planar organic scaffolds, natural and synthetic, to identify ...