Applied Magnetic Resonance

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Regularities of the spin exchange coupling through a bridge in nitroxide biradicals
Applied Magnetic Resonance - Tập 26 - Trang 253-274 - 2004
A. I. Kokorin
The current state, achievements, problems and prospects of the intramolecular electron spin exchange interaction as a function of the nitroxide biradical composition and structure, type of the radical ring, temperature and the solvent nature are considered on the basis of the literature data and the results of our own experiments.
Exploring Chromophore-Binding Pocket: High-Resolution Solid-State 1H–13C Interfacial Correlation NMR Spectra with Windowed PMLG Scheme
Applied Magnetic Resonance - Tập 42 Số 1 - Trang 79-88 - 2012
Chen Song, Christina Lang, Jo Mailliet, Jon Hughes, Wolfgang Gärtner, Jörg Matysik
Substituent Influences on the NMR Signal Amplification of Ir Complexes with Heterocyclic Carbene Ligands
Applied Magnetic Resonance - Tập 50 - Trang 895-902 - 2019
Sara Hadjiali, Roman Savka, Markus Plaumann, Ute Bommerich, Sarah Bothe, Torsten Gutmann, Tomasz Ratajczyk, Johannes Bernarding, Hans-Heinrich Limbach, Herbert Plenio, Gerd Buntkowsky
A number of Ir–N-heterocyclic carbene (Ir–NHC) complexes with asymmetric N-heterocyclic carbene (NHC) ligands have been prepared and examined for signal amplification by reversible exchange (SABRE). Pyridine was chosen as model compound for hyperpolarization experiments. This substrate was examined in a solvent mixture using several Ir–NHC complexes, which differ in their NHC ligands. The SABRE po... hiện toàn bộ
Hydrogen-Bonded Complexes of Neutral Nitroxide Radicals with 2-Propanol Studied by Multifrequency EPR/ENDOR
Applied Magnetic Resonance - Tập 53 - Trang 1239-1263 - 2021
Anton Savitsky, Anna Nalepa, Taras Petrenko, Martin Plato, Klaus Möbius, Wolfgang Lubitz
The hydrogen bond plays a key role in weak directional intermolecular interactions. It is operative in determining molecular conformation and aggregation, and controls the function of many chemical systems, ranging from inorganic, organic to biological molecules. Although an enormous amount of spectroscopic information has been collected about hydrogen-bond formation between molecules with closed-... hiện toàn bộ
Development of isoindoline nitroxides for EPR oximetry in viable systems
Applied Magnetic Resonance - Tập 22 - Trang 357-368 - 2002
J. Shen, S. Bottle, N. Khan, O. Grinberg, D. Reid, A. Micallef, H. Swartz
Nitroxides are widely used as biophysical probes to study molecular motion, intracellular oxygen, pH, transmembrane potential, and cellular redox metabolism, etc. They may be rapidly metabolized to hydroxylamines by cells, which limits their use in viable systems. In this study, we have characterized relevant properties in cells of several isoindoline nitroxides that have been prepared to have dif... hiện toàn bộ
Two-Frequency Planar Gradiometer for Distant NQR Detection of Explosives
Applied Magnetic Resonance - Tập 52 - Trang 1787-1797 - 2021
Rustem R. Khusnutdinov, G. V. Mozzhukhin, A. B. Konov, Y. Ozturk, B. Z. Rameev
The experimental realization of the two-frequency 14N nuclear quadrupole resonance (NQR) technique with use of the gradiometer radiofrequency (RF) probe for applications in the remote detection of explosives and other substances has been proposed. The planar two-frequency gradiometer has been designed, modeled and manufactured. The regions, where the RF magnetic fields are nearly orthogonal to eac... hiện toàn bộ
Transceiver-Phased Arrays for Human Brain Studies at 7 T
Applied Magnetic Resonance - Tập 41 - Trang 483-506 - 2011
Nikolai I. Avdievich
The paper describes technological advances in high-field (7 T) transceiver-phased arrays developed for magnetic resonance imaging of the human brain. The first part of this work describes an 8-element inductively decoupled split elliptical transceiver-phased array with selectable geometry, which provides an easy and efficient way of compensating for changes in mutual inductive coupling associated ... hiện toàn bộ
Study of EPR parameters and defect structure for two tetragonal impurity centers in MgO:Cr3+ and MgO:Mn4+ crystals
Applied Magnetic Resonance - Tập 35 - Trang 503-510 - 2009
Xiao-Xuan Wu, W. Fang, W. -L. Feng, W. -C. Zheng
The electron paramagnetic resonance (EPR) parameters (g-factors g ‖, g ⊥ and zero-field splitting D) of two tetragonal 3d3 impurity centers M3d-VMg and M3d-Li+ (where M3d = Cr3+ or Mn4+, VMg is the Mg2+ vacancy) in M3d-doped MgO crystals are calculated from the high-order perturbation formulas including both the crystal-field (CF) and the charge-transfer (CT) mechanisms for 3d3 ions in the tetrago... hiện toàn bộ
MAS, STMAS and DQMAS NMR Studies of the Thermal Transformation of Kaolinite
Applied Magnetic Resonance - Tập 44 - Trang 1081-1094 - 2013
Xiongchao Lin, Keiko Ideta, Jin Miyawaki, Yonggang Wang, Isao Mochida, Seong-Ho Yoon
Thermal transformations of kaolinite at different temperatures were monitored using X-ray diffraction (XRD), high-resolution solid-state nuclear magnetic resonance (800 MHz for 1H Larmor frequency) with single-pulse magic-angle spinning, double-quantum filter satellite-transition magic-angle spinning, and double-quantum homo-nuclear correlation under magic-angle spinning experiments. Results show ... hiện toàn bộ
Correction to: Atomistic Simulations Modify Interpretation of Spin-Label Oximetry Data. Part 1: Intensified Water–Lipid Interfacial Resistances
Applied Magnetic Resonance - Tập 53 Số 10 - Trang 1431-1433 - 2022
Gary Angles, Angela Hail, Rachel J. Dotson, Sally C. Pias
Tổng số: 2,265   
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