Results 11 to 20 of about 5,197 (301)

ENDOR of Organic Radicals in Solution

CHIMIA, 1972
A survey is given over the end or method as applied to organic doublet radicals in solution. After discussing the experimental requirements for successful end or-in-solution work, selected examples are presented which demonstrate the power and ...
Klaus Möbius, Klaus-Peter Dinse
doaj   +3 more sources

Cross-polarisation edited ENDOR [PDF]

Molecular Physics, 2013
Electron-nuclear double resonance (ENDOR) is a fundamental technique in electron paramagnetic resonance (EPR) spectroscopy that directly detects hyperfine transitions of nuclei coupled to a paramagnetic centre. Despite its wide use, spin-sensitivity and restricted spectral resolution in powder samples pose limitations of this technique in modern ...
Rizzato, R., Kaminker, I., Vega, S., Bennati, M.   +3 more
openaire   +5 more sources

Superhyperfine interactions in Ce3+ doped LiYF4 crystal: ENDOR measurements [PDF]

Magnetic Resonance in Solids, 2017
The first observation of the resolved Mims electron-nuclear double resonance (ENDOR) spectra from the nearby and remote nuclei of 19F and 7Li nuclei on impurity Ce3+ ions in LiYF4 crystal is reported. It shows that LiYF4:Ce3+ system can be exploited as a
M.R. Gafurov, G.V. Mamin, I.N. Kurkin, A.A. Rodionov, S.B. Orlinskii   +4 more
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Bayesian optimization to estimate hyperfine couplings from 19F ENDOR spectra [PDF]

, 2023
ENDOR spectroscopy is a fundamental method to detect nuclear spins in the vicinity of paramagnetic centers and their mutual hyperfine interaction. Recently, site-selective introduction of 19F as nuclear labels has been proposed as a tool for ENDOR-based ...
Huckemann, S.F., Pokern, Y., Tkach, I., M. Hiller, A. Meyer, M. Bennati, A. Kehl, Bennati, M., H. Wiechers, Hiller, M., B. Eltzner, S.F. Huckemann, Huckemann, S., Kehl, A., I. Tkach, Wiechers, H., Y. Pokern, Eltzner, B., Meyer, A.   +18 more
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Reverse dynamic nuclear polarisation for indirect detection of nuclear spins close to unpaired electrons [PDF]

Magnetic Resonance, 2022
Polarisation transfer schemes and indirect detection are central to magnetic resonance. Using the trityl radical OX063 and a pulse electron paramagnetic resonance spectrometer operating in the Q-band (35 GHz, 1.2 T), we show here that it is possible to ...
N. Wili, J. H. Ardenkjær-Larsen, G. Jeschke   +2 more
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Distribution of H$^\beta$ Hyperfine Couplings in a Tyrosyl Radical Revealed by 263 GHz ENDOR Spectroscopy

, 2023
1 H ENDOR spectra of tyrosyl radicals (Y∙ ) have been the subject of numerous EPR spectroscopic studies due to their importance in biology. Nevertheless, assignment of all internal 1 H hyperfine couplings has been challenging because of substantial ...
Hiller, M.; Max Planck Institute for Biophysical Chemistry, Göttingen, Germany, Pokern, Y.; Department of Statistical Science, University College London, London, UK, Pokern, Y., Tkach, I.; Max Planck Institute for Biophysical Chemistry, Göttingen, Germany, Tkach, I., Bennati, M.; Department of Chemistry, Georg-August University of Göttingen, Göttingen, Germany, Wiechers, H.; Department of Mathematical Stochastics, Georg-August-University Göttingen, Göttingen, Germany, Bennati, M., Hiller, M., Huckemann, S., Wiechers, H., Huckemann, S.; Department of Mathematical Stochastics, Georg-August-University Göttingen, Göttingen, Germany, Eltzner, B.; Department of Mathematical Stochastics, Georg-August-University Göttingen, Göttingen, Germany, Eltzner, B.   +13 more
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Radiation-Induced Stable Radicals in Calcium Phosphates: Results of Multifrequency EPR, EDNMR, ESEEM, and ENDOR Studies

Applied Sciences, 2021
This article presents the results of a study of radiation-induced defects in various synthetic calcium phosphate (CP) powder materials (hydroxyapatite—HA and octacalcium phosphate—OCP) by electron paramagnetic resonance (EPR) spectroscopy at the X, Q ...
Fadis F. Murzakhanov, Peter O. Grishin, Margarita A. Goldberg, Boris V. Yavkin, Georgy V. Mamin, Sergei B. Orlinskii, Alexander Yu. Fedotov, Natalia V. Petrakova, Andris Antuzevics, Marat R. Gafurov, Vladimir S. Komlev   +10 more
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Resolution of chemical shift anisotropy in 19F ENDOR spectroscopy at 263 GHz/9.4 T

, 2021
Pulsed 19F ENDOR spectroscopy provides a selective method for measuring angstrom to nanometer distances in structural biology. Here, the performance of 19F ENDOR at fields of 3.4 T and 9.4 T is compared using model compounds containing one to three 19F ...
Tkach, I., Hecker, F., Bennati, Marina, Hiller, Markus, Tkach, Igor, Bennati, M., Kehl, Annemarie, Meyer, Andreas, Hiller, M., Dechert, S., Dechert, Sebastian, Kehl, A., Hecker, Fabian, Meyer, A.   +13 more
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Structures of Impurity Defects in Lithium Niobate and Tantalate Derived from Electron Paramagnetic and Electron Nuclear Double Resonance Data

Crystals, 2021
Point intrinsic and extrinsic defects, especially paramagnetic ions of transition metals and rare-earth elements, have essential influence on properties of lithium niobate, LN and tantalate, LT, and often determine their suitability for numerous ...
Valentin G. Grachev, Galina I. Malovichko   +1 more
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Involvement of miR-190b in Xbp1 mRNA Splicing upon Tocotrienol Treatment

Molecules, 2020
We previously demonstrated that apoptosis induced by tocotrienols (γ and δT3) in HeLa cells is preceded by Ca2+ release from the endoplasmic reticulum. This event is eventually followed by the induction of specific calcium-dependent signals, leading to ...
Roberto Ambra, Sonia Manca, Guido Leoni, Barbara Guantario, Raffaella Canali, Raffaella Comitato   +5 more
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