Chemistry (Scholarly Publications): Recent submissions
Now showing items 761-780 of 931
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Modelling of Atomic Imaging and Evaporation in the Field Ion Microscope
(2011)Imaging and evaporation of atoms in the field ion microscope (FIM) has been modelled by using finite difference methods to calculate the voltage distribution around a tip and hence the electric field strength experienced ... -
Nature of the Band Gap and Origin of the Conductivity of PbO2 Revealed by Theory and Experiment
(2011)Lead dioxide has been used for over a century in the lead-acid battery. Many fundamental questions concerning PbO2 remain unanswered, principally: (i) is the bulk material a metal or a semiconductor, and (ii) what is the ... -
Cell Proliferation Tracking Using Graphene Sensor Arrays
(2012)The development of a novel label-free graphene sensor array is presented. Detection is based on modification of graphene FET devices and specifically monitoring the change in composition of the nutritive components in ... -
Folic acid modified gelatine coated quantum dots as potential reagents for in vitro cancer diagnostics.
(2011)BACKGROUND: Gelatine coating was previously shown to effectively reduce the cytotoxicity of CdTe Quantum Dots (QDs) which was a first step towards utilising them for biomedical applications. To be useful they also need ... -
{4,6-Bis[(E)-1-methyl-2-(pyridin-2-yl-methyl-idene-κN)hydrazinyl-κN]pyrimidine-κN}dichloridocopper(II) methanol disolvate monohydrate
(2011)The title compound, [CuCl2(C18H18N8)]?2CH3OH?H2O, contains a pentacoordinated Cu(II) atom bonded to the tridentate 4,6-bis[(E)-1-methyl-2-(pyridin-2-ylmethylidene)hydrazinyl]pyrimidine ligand and two Cl atoms. The geometry ... -
(2,3,7,8,12,13,17,18-Octa-ethyl-5-phenyl-porphyrinato)platinum(II).
(2011)The title compound, [Pt(C42H48N4)], was obtained through metallation of the corresponding free base with PtCl2, followed by crystallization from methylene chloride/methanol. The molecule exhibits an almost planar macrocycle ... -
Mechanism of Oxygen Reactions at Porous oxide Electrodes. Part 2. Oxygen evolution at ruthenium dioxide, iridium dioxide and mixed ruthenium iridium oxide electrodes in aqueous acid and alkaline solution
(Royal Society of Chemistry, 2011)The kinetics mechanism of the oxygen evolution reaction at a series of RuO2/IrO2 mixed oxides in aqueous acid and alkaline solution has been examined using a variety of electrochemical methods. Factors affecting the ... -
Highly chemoselective direct crossed aliphatic- aromatic acyloin condensations with triazolium-derived carbene catalysts
(2011)It has been shown for the first time that triazolium pre-catalysts promote (in the presence of base) highly chemoselective crossed acyloin condensation reactions between aliphatic and ortho-substituted aromatic aldehydes. ... -
One-step double reduction of aryl nitro and carbonyl groups using hydrazine
(2011)Single-step reduction of aryl nitro and carbonyl groups to the corresponding synthetically useful alkyl-anilines occurs with excellent yields by treatment with hydrazine and a base in a solvent-free reaction. The method ... -
Nanotextured gold coatings on carbon nanofiber scaffolds as ultrahigh surface-area electrodes
(2012)High surface area metal electrodes are desirable for applications in energy storage and energy conversion. Here, the formation and electrochemical characterization of a hybrid material made by electroless deposition of ... -
The Effect of Downstream Plasma Treatments on Graphene Surfaces
(2012)This paper reports on the effects of growth, transfer and annealing procedures on graphene grown by chemical vapour deposition. A combination of Raman spectroscopy, electrical measurements, atomic force microscopy, and ... -
Paving the way to the integration of smart nanostructures: Part II: Nanostructured microdispersed hydrated metal oxides for electrochemical energy conversion and storage applications
(2011)The use of hydrogen gas produced by the electrolysis of water is the basis of a long term energy conversion and storage option that has been and still continues to be the subject of considerable research. Alkaline water ... -
Measuring the conductivity of single fibres
(2011)The methodology required to measure the conductivity of single fibres is outlined, the basic underlying physics discussed and recent pertinent examples culled from the scientific literature are presented for illustration. ... -
Enhanced oxygen evolution at hydrous oxy-hydroxide modified iron electrodes in aqueous alkaline solution
(2011)Outstanding issues regarding the film formation and the oxygen evolution reaction (OER) electrocatalytic behaviour of multicycled iron oxyhydroxide films in aqueous alkaline solution have been revisited. The oxide is grown ... -
Electronic structures of silver oxides
(2011)The oxides of silver have a number of important technological applications, including use in battery technology, catalysis, and in the treatment of dermatological conditions. However, only the Ag2O phase has been well ... -
Understanding the DNA binding of novel non-symmetrical guanidinium/2-aminoimidazolinium derivatives.
(2010)Biophysical studies have been carried out on a family of asymmetric guanidinium-based diaromatic derivatives to assess their potential as DNA minor groove binding agents. To experimentally assess the binding of these ... -
Preliminary investigations on novel camphor-derived chiral sulfones: completely stereoselective formation of tricyclic ?-hydroxysulfones from 8- and 10- functionalized camphor derivatives
(Elsevier, 2011)Some camphor-derived chiral allylic and benzylic sulfones in which the sulfonyl group is located at the C-10, C-9 or C-8 methyl groups of (+)-camphor were synthesized. The C-9 and C-8 substituted sulfones were obtained via ... -
Transient Spectroscopy of Dipyridophenazine Metal Complexes which undergo electron transfer with DNA
(2011)This review considers transient spectroscopic studies of electron transfer reactions between nucleic acids and the excited states of transition metal complexes containing dipyridophenazine or related ligands and focuses ... -
Carbazole-linked porphyrin dimers for organic light emitting diodes: Synthesis and initial photophysical studies
(2011)Carbazole linked porphyrin dimers were synthesized in good yields via stepwise Suzuki coupling reactions using bromoporphyrins and borylated carbazoles as the precursors, the latter of which were synthesized via known ... -
Chemical bonding in copper-based transparent conducting oxides: CuMO(2) (M = In, Ga, Sc)
(Institute of Physics, 2011)The geometry and electronic structure of copper-based p-type delafossite transparent conducting oxides, CuMO(2) (M = In, Ga, Sc), are studied using the generalized gradient approximation (GGA) corrected for on-site Coulomb ...
