Browsing by Subject "Physical chemistry"
Now showing items 1-20 of 44
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(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 ... -
(5,15-Dianthracen-9-yl-10,20-dihexyl-porphyrinato)nickel(II): A planar nickel(II) porphyrin
(2010)The title compound, [Ni(C60H52N4)], is an example of a meso tetrasubstituted nickel(II) porphyrin with both meso aryl and alkyl residues. The molecule exhibits a planar macrocycle with an average deviation of the 24 ... -
An alternative fluorine precursor for the synthesis of SnO2:F by spray pyrolysis
(2012)An alternative, non-toxic precursor was employed for the synthesis of SnO2:F transparent conducting oxide. The performance of benzenesulfonyl fluoride (BSF) as F source for spray pyrolysis was investigated. Its decomposition ... -
Carbon nanotubes and nanotube composites for nonlinear optical devices
(2009)Carbon nanotubes possess not only outstanding mechanical, electrical and thermal properties but also unique nonlinear optical properties. In this Feature Article, we review the recent developments of the carbon nanotube ... -
Chiral luminescent CdS nano-tetrapods
(Royal Society of Chemistry, 2010)The utilisation of chiral penicillamine stabilisers allowed the preparation of new water soluble white emitting CdS nano-tetrapods, which demonstrated circular dichroism in the band-edge region of the spectrum. -
Colorimetric 'naked-eye' and fluorescent sensors for anions based on amidourea functionalised 1,8-naphthalimide structures: Anion recognition via either deprotonation or hydrogen bonding in DMSO
(2008)The synthesis and the spectroscopic studies of three new amidourea-based sensors for anions, 1?3, are described. These are based on the use of 4-hydrazine-1,8-naphthalimides which upon reaction with isocyanates give rise ... -
Comparative study of bandwidths in copper delafossites from x-ray emission spectroscopy
(2009)The widths of the valence bands in the copper (I) delafossites CuGaO2, CuInO2, and CuScO2 have been measured by O?K-shell x-ray emission spectroscopy and are compared with previous experimental work on CuAlO2 and CuCrO2. ... -
Comparison between s- and d-electron mediated transport in a photoswitching dithienylethene molecule using ab initio transport methods
(2011)The influence of the electrode's Fermi surface on the transport properties of a photoswitching molecule is investigated with state-of-the-art ab initio transport methods. We report results for the conducting properties of ... -
The complex synthesis and solid state chemistry of ceria-lanthana solid solutions prepared via a hexamethylenetetramine precipitation.
(Elsevier, 2011)Mixed oxide solid solutions are becoming ever more commercially important across a range of applications. However, their synthesis can be problematical. Here, we show that ceria-lanthana solid solutions can be readily ... -
Dependence of the molecular orientational states on the surface conditions for the "V-shaped switching" in a ferroelectriclike liquid crystal sample
(2001)The three-component mixture showing the V-shaped switching in a rubbing cell is investigated using a temperature gradient cell (TGC) where the epitaxial method of alignment, but without an alignment layer, is used. The ... -
DMF-exfoliated graphene for electrochemical NADH detection
(2011)The electrochemical detection of NADH is of considerable interest because it is required as a cofactor in a large number of dehydrogenase-based biosensors. However, the presence of oxygenated functionalities on the electrode ... -
Dynamics of ultrafast dissociation of hydrogenic molecules by resonant antibonding core electron excitation: Conclusions from detuning dependence of H+- kinetic energy distributions from condensed films
(Elsevier, 2011)The ultrafast dissociation dynamics of condensed water and ammonia by resonant core electron excitations have been studied by measuring the kinetic energy distributions of H+-ions desorbed by [N1s]4a1 and [O1s]4a1 excitations ... -
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 ... -
Electric Field Control of Valence Tautomeric Interconversion in Cobalt Dioxolene
(2011)We demonstrate that the critical temperature for valence tautomeric interconversion in cobalt dioxolene complexes can be significantly changed when a static electric field is applied to the molecule. This is achieved by ... -
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 ... -
Exchange interactions and magnetic phases of transition metal oxides: Benchmarking advanced ab initio methods
(2011)The magnetic properties of the transition metal monoxides MnO and NiO are investigated at equilibrium and under pressure via several advanced first-principles methods coupled with Heisenberg Hamiltonian Monte Carlo. The ... -
Gold electrodeposition in organic media
(2011)Organic species are easily adsorbed onto metal electrodes, due to the high surface energy. This principle is widely employed in electrodeposition to obtain grains with a given shape and size. Electrodeposition in organic ... -
The importance of repulsive potential barriers for the dispersion of graphene using surfactants
(2010)We have dispersed graphene in water, stabilized by a range of 12 ionic and non-ionic surfactants. In all cases, the degree of exfoliation, as characterized by flake length and thickness, was similar. The dispersed flakes ... -
In situ synthesis and optical limiting response of poly(N-vinylcarbazole) functionalized single-walled carbon nanotubes
(Institute of Physics, 2010)A new poly(N-vinylcarbazole)-covalently grafted single-wall carbon nanotube (SWNT?PVK) hybrid material was synthesized by an in situ anionic polymerization reaction of N-vinylcarbazole and the negatively charged SWNTs. ... -
Influence of hard segment content and nature on polyurethane/multiwalled carbon nanotube composites
(2011)Knowledge of how polyurethanes, PU, complexity affects their derived multiwalled carbon nanotube, MWCNT, composites could shed important clues for preparing future tailored PU/MWCNT elastic, strong and electrically conductive ...