All Outputs (15)

A Study of the Ceramicisation of Allylhydridopolycarbosilane by Thermal Volatilisation Analysis and Solid-State Nuclear Magnetic Resonance (2022)
Journal Article
Print, L. J., Liggat, J. J., Moug, S., Seaton, H., & Apperley, D. C. (2023). A Study of the Ceramicisation of Allylhydridopolycarbosilane by Thermal Volatilisation Analysis and Solid-State Nuclear Magnetic Resonance. Silicon, 15(3), 1355-1379. https://doi.org/10.1007/s12633-022-02072-0

AHPCS is a pre-ceramic polymer utilised as a precursor to SiC. An initial polymerisation to a cross-linked network is followed by a complex sequence of processes ultimately leading to amorphous SiC. Using thermal volatilisation analysis (TVA) accompa... Read More about A Study of the Ceramicisation of Allylhydridopolycarbosilane by Thermal Volatilisation Analysis and Solid-State Nuclear Magnetic Resonance.

Thermal Evolution of Natural Layered Double Hydroxides: Insight from Quintinite, Hydrotalcite, Stichtite, and Iowaite as Reference Samples for CO3- and Cl-Members of the Hydrotalcite Supergroup (2020)
Journal Article
Zhitova, E., Greenwell, H., Krzhizhanovskaya, M., Apperley, D., Pekov, I., & Yakovenchuk, V. (2020). Thermal Evolution of Natural Layered Double Hydroxides: Insight from Quintinite, Hydrotalcite, Stichtite, and Iowaite as Reference Samples for CO3- and Cl-Members of the Hydrotalcite Supergroup. Minerals, 10(11), Article 961. https://doi.org/10.3390/min10110961

In Situ high-temperature powder X-ray diffraction experiments were undertaken for the coarse crystalline natural layered double hydroxides (LDHs) quintinite, hydrotalcite, stichtite, and iowaite in the temperature range 25–1000 °C, with thermal analy... Read More about Thermal Evolution of Natural Layered Double Hydroxides: Insight from Quintinite, Hydrotalcite, Stichtite, and Iowaite as Reference Samples for CO3- and Cl-Members of the Hydrotalcite Supergroup.

The influence of intrapore cation on the fluorination of zeolite Y (2020)
Journal Article
Parsons, D. S., Apperley, D. C., Ingram, A., & Hriljac, J. A. (2020). The influence of intrapore cation on the fluorination of zeolite Y. Microporous and Mesoporous Materials, 307, Article 110470. https://doi.org/10.1016/j.micromeso.2020.110470

The influence of the intrapore cation on the fluorination of zeolite Y from dilute fluoride solutions has been studied, revealing fluoride reacts with the zeolite framework in the presence of a Brønsted acid to form [SiO3F] and [AlO3F] moieties. 29Si... Read More about The influence of intrapore cation on the fluorination of zeolite Y.

A One-Pot Divergent Sequence to Pyrazole and Quinoline Derivatives (2020)
Journal Article
Gambacorta, G., Apperley, D. C., & Baxendale, I. R. (2020). A One-Pot Divergent Sequence to Pyrazole and Quinoline Derivatives. Molecules, 25(9), Article 2160. https://doi.org/10.3390/molecules25092160

The hydroxy-pyrazole and 3-hydroxy-oxindole motifs have been utilised in several pharma and agrochemical leads but are distinctly underrepresented in the scientific literature due to the limited routes of preparation. We have developed a one-pot proc... Read More about A One-Pot Divergent Sequence to Pyrazole and Quinoline Derivatives.

Framework Effects on Activation and Functionalisation of Methane in Zinc‐Exchanged Zeolites (2020)
Journal Article
Shah, M. A., Raynes, S., Apperley, D. C., & Taylor, R. A. (2020). Framework Effects on Activation and Functionalisation of Methane in Zinc‐Exchanged Zeolites. ChemPhysChem, 21(7), 673-679. https://doi.org/10.1002/cphc.201900973

The first selective oxidation of methane to methanol is reported herein for zinc‐exchanged MOR (Zn/MOR). Under identical conditions, Zn/FER and Zn/ZSM‐5 both form zinc formate and methanol. Selective methane activation to form [Zn‐CH 3 ] + species wa... Read More about Framework Effects on Activation and Functionalisation of Methane in Zinc‐Exchanged Zeolites.

Enhancing the Efficiency in a Dye-Sensitized Solar Cell Based on a Metal Oxide Nanocomposite Gel Polymer Electrolyte (2019)
Journal Article
Saidi, N. M., Omar, F. S., Numan, A., Apperley, D. C., Algaradah, M. M., Kasi, R., …Subramaniam, R. T. (2019). Enhancing the Efficiency in a Dye-Sensitized Solar Cell Based on a Metal Oxide Nanocomposite Gel Polymer Electrolyte. ACS Applied Materials and Interfaces, 11(33), 30185-30196. https://doi.org/10.1021/acsami.9b07062

In order to overcome the critical limitations of liquid electrolyte-based dye-sensitized solar cells, quasi-solid-state electrolytes have been explored as a means of addressing long-term device stability, albeit with comparatively low ionic conductiv... Read More about Enhancing the Efficiency in a Dye-Sensitized Solar Cell Based on a Metal Oxide Nanocomposite Gel Polymer Electrolyte.

Dynamics of Charcoal Alteration in a Tropical Biome: A Biochar-Based Study (2018)
Journal Article
Ascough, P. L., Bird, M. I., Meredith, W., Snape, C., Large, D., Tilston, E., …Shen, L. (2018). Dynamics of Charcoal Alteration in a Tropical Biome: A Biochar-Based Study. Frontiers in Earth Science, 6, Article 61. https://doi.org/10.3389/feart.2018.00061

Pyrogenic carbon (PyC) is a polyaromatic residue of the incomplete combustion of biomass or fossil fuels. There is a growing recognition that PyC forms an important part of carbon budgets, due to production rates of 116–385 Tg C yr, and the size and... Read More about Dynamics of Charcoal Alteration in a Tropical Biome: A Biochar-Based Study.

A Molecular Budget for a Peatland Based Upon 13C Solid‐State Nuclear Magnetic Resonance (2018)
Journal Article
Moody, C. S., Worrall, F., Clay, G. D., Burt, T. P., Apperley, D. C., & Rose, R. (2018). A Molecular Budget for a Peatland Based Upon 13C Solid‐State Nuclear Magnetic Resonance. Journal of Geophysical Research: Biogeosciences, 123(2), 547-560. https://doi.org/10.1002/2017jg004312

Peatlands can accumulate organic matter into long‐term carbon (C) storage within the soil profile. This study used solid‐state 13C nuclear magnetic resonance (13C‐NMR) to investigate the transit of organic C through a peatland ecosystem to understand... Read More about A Molecular Budget for a Peatland Based Upon 13C Solid‐State Nuclear Magnetic Resonance.

New Insight into Mixing Fluoride and Chloride in Bioactive Silicate Glasses (2018)
Journal Article
Chen, X., Chen, X., Pedone, A., Apperley, D., Hill, R. G., & Karpukhina, N. (2018). New Insight into Mixing Fluoride and Chloride in Bioactive Silicate Glasses. Scientific Reports, 8(1), Article 1316. https://doi.org/10.1038/s41598-018-19544-2

Adding fluoride into bioactive glasses leads to fluorapatite formation and a decrease in glass transition temperature. Recently, chloride has been introduced into glasses as an alternative to fluoride. The presence of the large chloride ion lowers gl... Read More about New Insight into Mixing Fluoride and Chloride in Bioactive Silicate Glasses.

The Role of Catalyst Support, Diluent and Co-Catalyst in Chromium-Mediated Heterogeneous Ethylene Trimerisation (2018)
Journal Article
Lamb, M., Apperley, D., Watson, M., & Dyer, P. (2018). The Role of Catalyst Support, Diluent and Co-Catalyst in Chromium-Mediated Heterogeneous Ethylene Trimerisation. Topics in Catalysis, 61(3-4), 213-224. https://doi.org/10.1007/s11244-018-0891-8

Sequential treatment of a previously-calcined solid oxide support (i.e. SiO2, γ-Al2O3, or mixed SiO2–Al2O3) with solutions of Cr{N(SiMe3)2}3 (0.71 wt% Cr) and a Lewis acidic alkyl aluminium-based co-catalyst (15 molar equivalents) affords initiator s... Read More about The Role of Catalyst Support, Diluent and Co-Catalyst in Chromium-Mediated Heterogeneous Ethylene Trimerisation.

An Efficient Method for ¹⁵N-Labeling of Chitin in Fungi (2009)
Journal Article
Watson, H., Apperley, D., Dixon, D., Edwards, R., & Hodgson, D. (2009). An Efficient Method for ¹⁵N-Labeling of Chitin in Fungi. Biomacromolecules, 10(4), 793-797. https://doi.org/10.1021/bm8012814

To permit facile 15N solid-state NMR (ssNMR) analysis of the degree of acetylation (DA) of chitinous materials in fungi a method for the introduction of a 15N isotopic label has been developed. Using Penicillium chrysogenum as a model system, a serie... Read More about An Efficient Method for ¹⁵N-Labeling of Chitin in Fungi.

Concise syntheses of tridentate PNE ligands and their coordination chemistry with palladium(II): a solution- and solid-state study (2006)
Journal Article
Anderson, C., Apperley, D., Batsanov, A., Dyer, P., & Howard, J. (online). Concise syntheses of tridentate PNE ligands and their coordination chemistry with palladium(II): a solution- and solid-state study. Dalton Transactions, 4134-4145. https://doi.org/10.1039/b605995c

A straightforward methodology for the high-yielding synthesis of the di-functionalised phosphines {Ph2P(CH2)2NC4H8E, E = NMe (1), O (2), S (3)}via base-catalysed Michael addition is described. Reaction of the functionalised tertiary phosphines 1–3 wi... Read More about Concise syntheses of tridentate PNE ligands and their coordination chemistry with palladium(II): a solution- and solid-state study.

Characterisation of indomethacin and nifedipine using variable-temperature solid-state NMR (2005)
Journal Article
Apperley, D. C., Forster, A. H., Fournier, R., Harris, R. K., Hodgkinson, P., Lancaster, R. W., & Rades, T. (2005). Characterisation of indomethacin and nifedipine using variable-temperature solid-state NMR. Magnetic Resonance in Chemistry, 43(11), 881-892. https://doi.org/10.1002/mrc.1643

We have characterised the stable polymorphic forms of two drug molecules, indomethacin (1) and nifedipine (2) by C-13 CPMAS NMR and the resonances have been assigned. The signal for the C-Cl carbon of indomethacin has been studied as a function of ap... Read More about Characterisation of indomethacin and nifedipine using variable-temperature solid-state NMR.

Solid-state NMR studies of some tin(II) compounds (2004)
Journal Article
Amornsakchai, P., Apperley, D., Harris, R., Hodgkinson, P., & Waterfield, P. (2004). Solid-state NMR studies of some tin(II) compounds. Solid State Nuclear Magnetic Resonance, 26(3-4), 160-171

High-resolution NMR spectra of spin-1/2 nuclei, particularly Sn-119 and insolid tin(II) phosphite, SnHPO3,and tin(II) phosphate, SnHPO4, are presented. The results are discussed in relation to the crystal structures. Spinning sideband analysis has be... Read More about Solid-state NMR studies of some tin(II) compounds.

Solid-state Ag-109 CP/MAS NMR spectroscopy of some diammine silver(I) complexes (2004)
Journal Article
Bowmaker, G., Harris, R., Assadollahzadeh, B., Apperley, D., Hodgkinson, P., & Amornsakchai, P. (2004). Solid-state Ag-109 CP/MAS NMR spectroscopy of some diammine silver(I) complexes. Magnetic Resonance in Chemistry, 42(9), 819-826

Solid-state cross-polarization magic-angle spinning (CP/MAS) NMR spectra were recorded for the compounds [Ag(NH3)(2)](2)SO4, [Ag(NH3)(2)](2)SeO4 and [Ag(NH3)(2)]NO3, all of which contain the linear or nearly linear two-coordinate [Ag(NH3)(2)](+) ion.... Read More about Solid-state Ag-109 CP/MAS NMR spectroscopy of some diammine silver(I) complexes.