Browsing School of Chemistry (Scholarly Articles) by Title
Now showing items 273-292 of 347
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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 ... -
Revealing biomedically relevant cell and lectin type-dependent structure–activity profiles for glycoclusters by using tissue sections as an assay platform
(Royal Society of Chemistry, 2018-08-14)The increasing realization of the involvement of lectin-glycan recognition in (patho)physiological processes inspires envisioning therapeutic intervention by high-avidity/specificity blocking reagents. Synthetic glycoclusters ... -
Revisiting the kinetics and thermodynamics of the low-temperature oxidation pathways of alkanes: a case study of the three pentane isomers
(American Chemical Society, 2015-03-23)This paper describes our developing understanding of low-temperature oxidation kinetics. We have investigated the ignition of the three pentane isomers in a rapid compression machine over a wide range of temperatures and ... -
A route to 1-Deoxynojirimycin and 1-Deoxymannojirimycin derivatives with quaternary centers adjacent to the ring nitrogen from Methyl α-d-Mannopyranoside
(Wiley, 2020-02-03)6-Alkylated-8-azido-1,6-octadiene derivatives were prepared from methyl α-D-mannopyranoside. The sequence to allylic azide precursors included a Horner-Wadsworth-Emmons reaction with a concomitant epimerization that ... -
Ruthenium-centred btp glycoclusters as inhibitors for Pseudomonas aeruginosa biofilm formation
(Royal Society of Chemistry, 2021-05-04)Carbohydrate-decorated clusters (glycoclusters) centred on a Ru(II) ion were synthesised and tested for their activity against Pseudomonas aeruginosa biofilm formation. These clusters were designed by conjugating a range ... -
Salts, binary and ternary cocrystals of pyrimethamine: mechanosynthesis, solution crystallization and crystallization from the gas phase
(American Chemical Society, 2020-11-24)A series of salts and binary and ternary cocrystals of the antimalaria drug pyrimethamine (PYR) are reported. PYR has a donor–acceptor–donor (DAD) and a donor–acceptor (DA) binding site, and cocrystallization experiments ... -
Scaling behavior of polymers at liquid/liquid interfaces
(American Chemical Society, 2015-09-14)The dynamics of a polymer chain confined in a soft 2D slit formed by two immiscible liquids is studied by means of molecular dynamics simulations. We show that the scaling behavior of a polymer confined between two liquids ... -
Simplified approach to the prediction and analysis of temperature inhomogeneity in rapid compression machines
(American Chemical Society, 2015-11-03)Substantial progress has been made in understanding and reducing temperature inhomogeneity in rapid compression machines (RCMs) with the help of computational modeling. To date, however, it has not been possible to investigate ... -
A single pulse shock tube study of pentene isomer pyrolysis
(Elsevier, 2020-08-02)A single-pulse shock tube study of the four pentene isomers is carried out at 2¿±¿0.16¿bar and 900¿1600¿K. C1 to C6 species profiles were recorded using gas chromatography mass spectrometry analyses. The species are ... -
A six-compound, high performance gasoline surrogate for internal combustion engines: Experimental and numerical study of autoignition using high-pressure shock tubes
(Elsevier, 2019-10-25)This paper presents experimental and modeling data for the autoignition of a novel, six-component, high performance gasoline surrogate fuel comprising ethanol, n-heptane, i-octane, 1-hexene, methylcyclohexane, and toluene ... -
Size exclusion chromatography for screening yeastolate used in cell culture media
(Elsevier, 2023-09-18)Yeastolate is often used as a media supplement in industrial mammalian cell culture or as a major media component for microbial fermentations. Yeastolate variability can significantly affect process performance, but analysis ... -
Small ester combustion chemistry: Computational kinetics and experimental study of methyl acetate and ethyl acetate
(Elsevier, 2018-07-17)Small esters represent an important class of high octane biofuels for advanced spark ignition engines. They qualify for stringent fuel screening standards and could be synthesized through various pathways. In this work, ... -
SnCl4- and TiCl4-catalyzed anomerization of acylated O- and S-Glycosides: analysis of factors that lead to higher alpha:beta anomer ratios and reaction rates
(American Chemical Society, 2010-09-13)The quantification of factors that influence both rates and stereoselectivity of anomerization reactions catalyzed by SnCl4 and TiCl4 and how this has informed the synthesis of alpha-O- and alpha-S-glycolipids is discussed ... -
Solid-state transformations of sulfathiazole polymorphs: The effects of milling and humidity
(American Chemical Society, 2013-07-11)The effect of milling on the transitions of sulfathiazole polymorphs in the absence and presence of solvent and excipients was monitored by X-ray powder diffraction (XRPD), attenuated total reflectance infrared (ATR-IR), ... -
Solvothermal synthesis of discrete cages and extended networks comprising {Cr(III)3O(O2CR)3(oxime)3}2- (R = H, CH3, C(CH3)3, C14H9) building blocks
(Royal Society of Chemistry, 2016-07-28)The synthesis, structural and magnetic characterisation of a family of related Cr(III) cages are reported. Each member comprises {Cr(III)3O(O2CR1)3(R2-sao)3}2- (R1 = H, CH3, C(CH3)3, C14H9 ; R2 = Me, Ph, tBu, C10H8) triangles ... -
Species measurements of the particulate matter reducing additive tri–propylene glycol monomethyl ether
(Elsevier, 2018-07-23)Reducing particulate matter formation and emissions by using fuel additives is a topic of interest for the petrochemical and automotive engineering industries. A compound which has been shown to be effective in this regard ... -
Spherulization as a process for the exudation of chemical cues by the encrusting sponge C. crambe
(Nature Publishing Group, 2016-07-06)Ecological interactions in the marine environment are now recognized to be partly held by chemical cues produced by marine organisms. In particular, sponges are sessile animals thought to rely on the bioactive substances ... -
Spontaneous solid-state cocrystallization of caffeine and urea
(American Chemical Society, 2020-01-09)The cocrystallization of caffeine and urea was monitored and analyzed using infrared spectroscopy, Raman microscopy, scanning electron microscopy, differential scanning calorimetry, and X-ray diffraction. The caffeine-urea ...