Browsing School of Chemistry (Scholarly Articles) by Title
Now showing items 256-275 of 347
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Probing the low-temperature chemistry of ethanol via the addition of dimethyl ether
(Elsevier, 2017-11-28)Considering the importance of ethanol (EtOH) as an engine fuel and a key component of surrogate fuels, the further understanding of its auto-ignition and oxidation characteristics at engine-relevant conditions (high pressures ... -
Progressive Decoration of a Pentanuclear Cu(II) 12-Metallocrown-4 Towards Targeted 1- and 2-D Extended Networks
(RSC, 2013-07-05)The synthesis, structures and magnetic characterisation of a family of discrete planar pentanuclear Cu(II) 12-MC-4 metallacrowns of formulae [Cu5(L1)4(MeOH)4](ClO4)2 (1), [Cu5(L1)4(py)2](ClO4)2·py (2), [Cu5(L1)4(py)6](ClO4)2 ... -
The pyrolysis of 2-methylfuran: a quantum chemical, statistical rate theory and kinetic modelling study
(Royal Society of Chemistry, 2014-01-27)Due to the rapidly growing interest in the use of biomass derived furanic compounds as potential platform chemicals and fossil fuel replacements, there is a simultaneous need to understand the pyrolysis and combustion ... -
Pyrolysis of n-pentane, n-hexane and n-heptane in a single pulse shock tube
(Elsevier, 2017-08-16)The pyrolysis of n-pentane, n-hexane and n-heptane have been studied behind reflected shock waves at pressures of 1.0-2.5 atm and at temperatures of 1000-1500 K. A single-pulse shock tube (SPST) was used to measure reactant, ... -
A pyrolysis study of allylic hydrocarbon fuels
(Wiley, 2020-08-17)The pyrolysis of selected C3 C5 allylic hydrocarbons has been studied using a single-pulse shock tube. A new single-pulse shock tube has been designed and constructed by recommissioning an existing conventional shock ... -
Quantitative analysis of cocaine in solid mixtures using Raman spectroscopy and chemometric methods
(Wiley, 2000)Near-infrared (785 mn) excitation was used to obtain Raman spectra from a series of 33 solid mixtures containing cocaine, caffeine and glucose (9.8-80.6% by weight cocaine), which were then analysed using chemometric ... -
Quantitative analysis of cocaine in solid mixtures using Raman spectroscopy and chemometric methods
(Wiley, 2000-04-27)Near-infrared (785 mn) excitation was used to obtain Raman spectra from a series of 33 solid mixtures containing cocaine, caffeine and glucose (9.8-80.6% by weight cocaine), which were then analysed using chemometric ... -
Quantitative analysis of weakly bound insulin oligomers in solution using polarized multidimensional fluorescence spectroscopy
(Elsevier, 2020-09-08)Being able to measure the size and distribution of oligomers in solution is a critical issue in the manufacture and stability of insulin and other protein formulations. Measuring oligomers reliably can however be complicated, ... -
Quantitative polymorph contaminant analysis in tablets using Raman and near infra-red spectroscopies
(2013)The detection and quantification of alternate polymorphs of active pharmaceutical ingredients (APIs), particularly at low concentrations is a key issue for the manufacture and analysis of solid-state formulations. Each ... -
Quenched-annealed density functional theory for interfacial behavior of hard rods at a hard rod matrix
(AIP Publishing, 2009)We consider a system of mobile hard rods that are immersed in an isotropic matrix of hard rods with quenched positions and orientations. Using quenched-annealed density functional theory the disorder-averaged excess free ... -
RAFT polymerization in supercritical carbon dioxide based on an induced precipitation approach: synthesis of 2-ethoxyethyl methacrylate/acrylamide block copolymers
(Wiley, 2015-05-13)A new controlled/living heterogeneous polymerization technique using RAFT in benign supercritical CO2 is described involving the formation of monomer-swollen seed particles by precipitation of macroRAFT agent prior to ... -
Rapid characterization and quality control of complex cell culture media solutions using Raman spectroscopy and chemometrics
(2010)The use of Raman spectroscopy coupled with chemometrics for the rapid identification, characterization, and quality assessment of Complex cell culture media components used for industrial mammalian cell culture was ... -
A rapid fluorescence based method for the quantitative analysis of cell culture media photo-degradation
(Elsevier (Science Direct), 2013-11-21)Cell culture media are very complex chemical mixtures that are one of the most important aspects in biopharmaceutical manufacturing. The complex composition of many media leads to materials that are inherently unstable and ... -
Rapid hydrolysis of phosphate monoesters by zirconium(IV) complexes in neutral solution
(2012)Three zirconium(IV) complexes (1-3) with mono- and dinucleating tripodal ligands are reported that promote the hydrolysis of the phosphate monoesters p-nitrophenyl phosphate (NPP) and phenyl phosphate (PP) in neutral ... -
Rapid quantification of tryptophan and tyrosine in chemically defined cell culture media using fluorescence spectroscopy
(2012)The rapid and inexpensive analysis of the complex cell culture media used in industrial mammalian cell culture is required for quality and variance monitoring. Excitation-emission matrix (EEM) spectroscopy combined with ... -
Rate constant calculations of H-Atom abstraction reactions from ethers by H(O) over dot(2) radicals
(American Chemical Society, 2014-01-31)In this work, we detail hydrogen atom abstraction reactions from six ethers by the hydroperoxyl radical, including dimethyl ether, ethyl methyl ether, propyl methyl ether, isopropyl methyl ether, butyl methyl ether, and ... -
An RCM experimental and modeling study on CH4 and CH4/C2H6 oxidation at pressures up to 160 bar
(Elsevier, 2017-06-13)The oxidation of CH4 and CH4/C2H6 mixtures were studied at pressures relevant to knocking in large bore natural gas engines. The experiments were carried out in a rapid compression machine (RCM) at end of compression (EOC) ... -
Recent advances in artificial photosynthetic systems at Newcastle University
(Elsevier, 2016-04-08)This review covers the most significant research done by the group of scientists working at Newcastle University during the last five years in the area of artificial photosynthesis. In particular, it tackles the aspects ... -
Regiospecific anomerisation of acylated glycosyl azides and benzoylated disaccharides by using TiCl4.
(Wiley, 2013-10-25)Chelation induced anomerisation is promoted when Lewis acids, such as TiCl4 or SnCl4 , coordinate to the pyranose ring oxygen atom and another site, giving rise to endocyclic cleavage and isomerisation to the more stable ... -
Relaxed but highly compact diansa metallacyclophanes
(American Chemical Society, 2011-09-09)A series of monoansa [μ-1,1′-PR-3,3′-Co(1,2-C2B9H10)2]− and diansa [8,8′-μ-(1″,2″-benzene)-μ-1,1′-PR-3,3′-Co(1,2-C2B9H9)2]− (R = Ph, tBu) cobaltabisdicarbollidephanes have been synthesized, characterized and studied by ...