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Journal of Physics E: Scientific Instruments, 1968
An ENDOR spectrometer has been developed which is especially suitable for studying ligand hyperfine interactions. The complicated ligand ENDOR spectra are considerably simplified by alignment of the crystalline axes relative to the magnetic field direction.
E R Davies, J P Hurrell
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An ENDOR spectrometer has been developed which is especially suitable for studying ligand hyperfine interactions. The complicated ligand ENDOR spectra are considerably simplified by alignment of the crystalline axes relative to the magnetic field direction.
E R Davies, J P Hurrell
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Fuel, 1990
Abstract Coals with carbon contents of 76 and 82 wt%, respectively, and their mixtures with ethylenediamine, were investigated by 1 H ENDOR spectroscopy. In all cases the spectra obtained had a single line centred on the free proton frequency and one or two pairs of lines indicating a weak electron-nuclear interaction.
N.D. Yordanov +3 more
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Abstract Coals with carbon contents of 76 and 82 wt%, respectively, and their mixtures with ethylenediamine, were investigated by 1 H ENDOR spectroscopy. In all cases the spectra obtained had a single line centred on the free proton frequency and one or two pairs of lines indicating a weak electron-nuclear interaction.
N.D. Yordanov +3 more
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Journal of Non-Crystalline Solids, 1983
Abstract Electron-nuclear double resonance (ENDOR) experiment has been employed on undoped GD a-Si:H films before and after isochronal annealings. ENDOR signals are characterized by two different types of spectra depending on annealing temperature. It has been demonstrated through the analyses of ENDOR as well as ESR and NMR that the dangling bonds ...
Satoshi Yamasaki +2 more
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Abstract Electron-nuclear double resonance (ENDOR) experiment has been employed on undoped GD a-Si:H films before and after isochronal annealings. ENDOR signals are characterized by two different types of spectra depending on annealing temperature. It has been demonstrated through the analyses of ENDOR as well as ESR and NMR that the dangling bonds ...
Satoshi Yamasaki +2 more
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ENDOR parameter measurements for free radicals in solution from CW-ENDOR
Journal of Magnetic Resonance (1969), 1983Abstract This analysis gives the computation of the ENDOR relaxation parameters ( Ω n , T n , Ω en ) from experimental data for a low-power CW-ENDOR spectrometer by applying Freed's theory. For resolved and Lorentzian EPR lines resulting from the interaction of the electronic spin with a single nuclear species, Ω n
A Fourrier, A Kreisler
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Chemical Physics Letters, 1989
Abstract A new method is described to generate subsystem ESR spectra and hyperfine-selective ENDOR spectra. It is based on a pulsed ENDOR scheme that achieves hyperfine selectivity by a rapid magnetic field jump between the microwave pulses. The procedure allows the measurement of hyperfine and quadrupole couplings that are not resolved in a ...
C. Bühlmann, A. Schweiger, R.R. Ernst
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Abstract A new method is described to generate subsystem ESR spectra and hyperfine-selective ENDOR spectra. It is based on a pulsed ENDOR scheme that achieves hyperfine selectivity by a rapid magnetic field jump between the microwave pulses. The procedure allows the measurement of hyperfine and quadrupole couplings that are not resolved in a ...
C. Bühlmann, A. Schweiger, R.R. Ernst
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Metalloprotein — Endor- Spectroscopy
1995The theoretical foundations for the application of high-resolution electronnuclear-double-resonance spectroscopy to the determination of structural properties of the prosthetic group in randomly oriented metalloproteins are delineated. Applications described involve Superoxide Dismutase as a copper-containing protein and Enoate Reductase as an iron ...
J. Hüttermann +3 more
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Technology of ENDOR Spectrometers
1992One straightforward approach to building an ENDOR spectrometer is to take a conventional EPR spectrometer, add the ability to produce a sufficiently high radio-frequency magnetic field in the microwave cavity, modulate this field, and then try to detect the change of the EPR signal, the ENDOR signal, with a lock-in amplifier. However, this will usually
Johann-Martin Spaeth +2 more
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Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1965
Abstract As this work has already been published in some detail (Baker & Williams 1962) I shall give only a résumé to emphasize the advances made possible by the endor technique. Divalent europium has, apart from filled shells, seven 4f electrons just half filling their shell; the Russell–Saunders ground state is then 8S7/2 with ...
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Abstract As this work has already been published in some detail (Baker & Williams 1962) I shall give only a résumé to emphasize the advances made possible by the endor technique. Divalent europium has, apart from filled shells, seven 4f electrons just half filling their shell; the Russell–Saunders ground state is then 8S7/2 with ...
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