Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Christopher C. Rowlands"'
EPR spectroscopy is a technique that detects and measures the properties of unpaired electron spins such as in free radicals and transition metals for example. Here the applications of EPR to chemical studies are reviewed, including investigations of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82adc746b3d1d17d016c5166ad91afab
https://doi.org/10.1016/b978-0-12-803224-4.00139-4
https://doi.org/10.1016/b978-0-12-803224-4.00139-4
The theoretical basis of electron paramagnetic resonance (EPR) spectroscopy is described. The principles of EPR and the various parameters that can be obtained from the spectra are explained.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5f669c334afb024bb7dd4be41c340b8
https://doi.org/10.1016/b978-0-12-803224-4.00140-0
https://doi.org/10.1016/b978-0-12-803224-4.00140-0
Autor:
John R. Peters, Jane McEneny, Catherine J. van Blerk, Gareth W. Davison, Christopher C. Rowlands, Simon K. Jackson, Ian S. Young, Tony Ashton, Eleri Jones
Publikováno v:
Free Radical Biology and Medicine. 35:284-291
Strenuous, long-duration aerobic exercise results in endotoxemia due to increased plasma levels of lipopolysaccharide (LPS) leading to cytokine release, oxidative stress, and altered gastrointestinal function. However, the effect of short-term strenu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0886077c1b211c28b52ffd2cd7c973d6
https://doi.org/10.1016/s0891-5849(03)00309-5
https://doi.org/10.1016/s0891-5849(03)00309-5
Autor:
Damien Martin Murphy, Christopher C. Rowlands, Sarah L Baum, Ian G.M Anderson, Richard R. Baker
Publikováno v:
Analytica Chimica Acta. 481:1-13
It has been shown in previous work that free radicals are generated in the mainstream smoke of cigarettes. The most direct method for the detection and quantification of these radicals is electron spin resonance (ESR) spectroscopy in conjunction with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54a9af9b5039c0cb95fed09fbb8113af
https://doi.org/10.1016/s0003-2670(03)00078-3
https://doi.org/10.1016/s0003-2670(03)00078-3
Publikováno v:
The Journal of Physical Chemistry A. 107:1779-1782
The interaction of a coadsorbed mixture of acetone and oxygen with a clean oxidized polycrystalline sample of TiO2 (P25) was investigated using electron paramagnetic resonance (EPR) spectroscopy. UV illumination of the sample at low temperature (100
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::845bf4f9b82c6761202be96b88cf394b
https://doi.org/10.1021/jp022448n
https://doi.org/10.1021/jp022448n
Autor:
Michael D. Ward, Christopher C. Rowlands, John P. Maher, Damien Martin Murphy, Peter Hoefer, Robert D. Farley, Jon A. McCleverty, Van An Ung
Publikováno v:
Magnetic Resonance in Chemistry. 40:683-686
11B hyperfine and quadrupolar couplings have been observed by the electron magnetic resonance techniques electron nuclear double resonance and hyperfine sublevel correlation spectroscopy for some tris(pyrazolyl)borato-oxomolybdenum(V) and related nit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::caa0ecb4786d52ca8b3f87a914602359
https://doi.org/10.1002/mrc.1090
https://doi.org/10.1002/mrc.1090
Autor:
Elio Giamello, Christopher C. Rowlands, Robert D. Farley, Damien Martin Murphy, Maria Cristina Paganini, Ian J. Purnell, Mario Chiesa
Publikováno v:
Magnetic Resonance in Chemistry. 40:381-386
A variety of surface anion vacancies, or point defects, are created by high-temperature activation of a series of polycrystalline alkaline earth metal oxides (MgO, CaO and SrO). Subsequent UV irradiation of the activated oxide under a hydrogen atmosp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb1e8ccd31217af159eb360807405b29
https://doi.org/10.1002/mrc.1028
https://doi.org/10.1002/mrc.1028
Publikováno v:
Current Opinion in Solid State and Materials Science. 5:97-104
EMR techniques have been extensively used in the past year to explore problems relevant to heterogeneous catalysis, including surface defects and radicals, redox processes with supported transition metal ions and in situ studies at elevated temperatu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f8f07d194d5d683c52d17e8d12df065
https://doi.org/10.1016/s1359-0286(00)00035-8
https://doi.org/10.1016/s1359-0286(00)00035-8
Publikováno v:
Physical Chemistry Chemical Physics. 3:497-504
In situ high temperature EPR measurements of the growth of the signal of substitutional Fe(III) ions have been used to study the diffusion of Fe in the rutile form of titanium dioxide. Two preparations, characteristic of the two main processes employ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14257e9a917f41bfe29440701973a93b
https://doi.org/10.1039/b007766f
https://doi.org/10.1039/b007766f
Autor:
Naoyuki Takahashi, Takato Nakamura, T. Matsuzawa, V. Beltrán-López, Graham Smith, Kazuhiko Kaiya, Christopher C. Rowlands, P.C. Riedi
Publikováno v:
Journal of Materials Chemistry. 10:2566-2569
The europium(II) sites in Sr4Al 14O25 ∶ Eu phosphor with blue emission were examined by means of high frequency (90 and 180 GHz) EPR spectroscopy. The ions occupy two low symmetry sites in the Sr4Al 14O25 lattice with |D| = 0.100 and 0.0907 cm−1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc918dd9ba1555cd81508490f094ba22
https://doi.org/10.1039/b004061o
https://doi.org/10.1039/b004061o