Results 1 to 10 of about 5,307,006 (250)
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 +2 more
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A primer in pulse EPR-based hyperfine spectroscopy for NMR spectroscopists
Journal of Magnetic Resonance Open, 2023 The theoretical foundations of NMR and EPR are very similar. Nevertheless, the fields differ significantly in practical aspects. This primer is an attempt to bridge some of the gaps between the fields, and at the same time it highlights some applications
Nino Wili
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Electron-nuclear double resonance [PDF]
Photosynthesis Research, 2009 The application of electron-nuclear double resonance (ENDOR) spectroscopy for the investigation of photosynthetic systems is reviewed. The basic principles of continuous wave and pulse ENDOR are presented. Selected examples of the application of the ENDOR technique for studying stable and transient paramagnetic species, including cofactor radical ions,
Kulik, Leonid, Lubitz, Wolfgang
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Nanomaterials, 2022 Petroleum asphaltenes are considered the most irritating components of various oil systems, complicating the extraction, transportation, and processing of hydrocarbons. Despite the fact that the paramagnetic properties of asphaltenes and their aggregates
Marat Gafurov +4 more
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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 +10 more
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Electron-nuclear double resonance of interstitial chromium in silicon [PDF]
Physical Review B, 1987 The positively charged state of interstitial chromium in silicon was investigated using electron-nuclear double resonance. We have found the hyperfine interaction of the impurity electrons with nine shells of surrounding silicon neighbors containing 102 atoms.
van Kemp, R. +2 more
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Pulsed Electron‐Nuclear Double Resonance in the Fourier Regime
ChemPhysChem, 2022 Abstract Nuclear magnetic resonance (NMR) spectroscopy provides atomic‐level molecular structural information. However, in molecules containing unpaired electron spins, NMR signals are difficult to measure directly. In such cases, data is obtained using the electron‐nuclear double resonance (ENDOR) method, where nuclei are detected ...
Nir Dayan +4 more
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Molecules, 2023 A series of nickel(II) porphyrins bearing one or two bulky nitrogen donors at the meso positions were prepared by using Ullmann methodology or more classical Buchwald–Hartwig amination reactions to create the new C-N bonds.
Mary-Ambre Carvalho +10 more
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High-resolution nanoscale NMR for arbitrary magnetic fields
Communications Physics, 2023 Nitrogen vacancy (NV) centers are a major platform for the detection of nuclear magnetic resonance (NMR) signals at the nanoscale. To overcome the intrinsic electron spin lifetime limit in spectral resolution, a heterodyne detection approach is widely ...
Jonas Meinel +8 more
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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 +1 more
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