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Isotopic labelling of dihydrofolate reductase for NMR studiesKhaw, Lake Ee 08 1900 (has links)
No description available.
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32 |
Nuclear magnetic double resonance experiments on chemically exchanging moleculesYang, Ping Pin 08 1900 (has links)
No description available.
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33 |
N¹⁴ nuclear magnetic resonance investigation of some solid nitratesWhitehouse, Bruce Alan 08 1900 (has links)
No description available.
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34 |
Stabilization of a magnetic field for detection of nuclear magnetic resonancesDyer, F. B. (Frederick Byron) 08 1900 (has links)
No description available.
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35 |
Studies in nuclear magnetic resonance : I. Anisotropy of the fluorine shielding constants in substituted fluorobenzenes. II. Molecular motions in borane and borontrihalide complexes.Yim, Chung-Tat. January 1969 (has links)
No description available.
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Applications of nuclear quadrupole resonance spectroscopy.Kaplansky, Marvin January 1967 (has links)
No description available.
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Solid-state NMR characterisation of transition-metal bearing nuclear waste glassesGreer, Brandon 26 September 2012 (has links)
Alkali borosilicate glass is used to immobilise high-level radioactive waste generated from the reprocessing of spent nuclear fuel. However, poorly soluble waste products such as molybdenum present issues for long-term storage of the material, whereby phase separation of water-soluble crystalline aggregates truncate the glass network and offer leaching opportunities for the escape of radionuclides into the environment. Solid-state NMR is an effective technique for studying the phase separation in nuclear waste glasses, as it is able to distinguish glassy and crystalline environments using nuclei-specific probes. The presence of paramagnetic transition metal cations within the waste glass compromises the efficacy of NMR, as unpaired electrons can cause broadening and chemical shift effects. This work engages in a multinuclear magnetic resonance characterisation of paramagnetically-doped (by Cr2O3, MnO2, Fe2O3, NiO, or Nd2O3) model nuclear waste glasses and explores the partitioning of transition-metal components. Characterisation of the separated heterogeneous crystalline phase was accomplished principally by 133Cs, 23Na, and 95Mo NMR, where it was determined that Cr substitutes into mixed-alkali molybdates. Furthermore, paramagnetic broadening and relaxation effects were observed and quantified by 11B and 29Si NMR.
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Anharmonic effects on the resonance line shape of U-238 in UO[subscript]2d'Avila, Ronald L. 08 1900 (has links)
No description available.
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39 |
Studies in nuclear magnetic resonance.Matthews, Christopher Howard. January 1970 (has links)
No description available.
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NMR of phosphorus-containing solidsWilkes, Philip John January 1987 (has links)
The purpose of this work has been the determination of structure in solids using the technique of solid-state nuclear magnetic resonance spectroscopy. High-resolution (^31) p NMR spectra have been obtained for a range of phosphate species. A number of techniques have been applied to these systems including cross-polarization, magic angle spinning, and high power proton decoupling. Characterisation using additional NMR techniques such as (^1) H cramps has been carried out wherever possible. The results obtained yield molecular and crystallographic information consistent with data from X-ray diffraction when known. Shielding tensor components were determined from static and/or spinning spectra wherever possible. The phosphate species studied include a series of precipitated calcium phosphates. A particular model for the structure of amorphous calcium phosphate is favoured in the light of (^31) p NMR measurements. One sample showed NMR evidence for changes in composition whilst in the solid state. The origins of (^31) p NMR line widths in high-resolution solid-state spectra have been considered in some detail. Variation of (^31) p NMR linewidth as function of spinning rate has been noted for a number phosphate compounds. Multiple pulse techniques have been applied on the phosphorus channel with pleasing improvements in spectral resolution. Five solid binary phosphorus sulphides have also been studied using phosphorus MAS NMR, and the results compared to solution state data wherever possible. A number of anomalies between solution and solid-state data have been noted and discussed.
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