Fluorine-19 nuclear magnetic resonance applications

Nuclear magnetic resonance of surface groups of the adsorbent and of the adsorbed gas has been studied recently 119-126) these effects are very specific to certain nuclei. The easiest resonances to detect are those of hydrogen and fluorine, while Al and Si give much weaker signals. Although rather limited in the number of nuclei which can be studied, this technique is certain to have many applications to surface phenomena. 

H.P. Shukla, Application of Perfluorocarbon Emulsions as Fluorine-19 Nuclear Magnetic Resonance Molecular Probes of Cardiac Tissue Oxygen Tension, University of Texas Southwestern Graduate School of Biomedical Sciences, 1994Ph.D.. 

Nuclear magnetic resonance spectroscopy has emerged as the most powerful tool for elucidating the molecular structures of cyclophos-phazene derivatives in solution. Proton NMR spectroscopy has been widely used because of its easy accessibility. The recent development of sophisticated instrumental facilities and the application of broadband proton decoupling have greatly improved the quality and usefulness of the 31P spectra (252) of cyclophosphazenes, and it is likely that this technique will become increasingly popular in the future. Fluorine NMR studies are useful for deducing the structures of fluorocyclophosphazenes, and the potential of this technique has been demonstrated in recent years (209, 210, 213, 307, 308, 343). 

The modern electronic industry has played a very important role in the development of instrumentation based on physical-analytical methods As aresult, a rapid boom in the fields of infrared, nuclear magnetic resonance (NMR), Raman, and mass spectroscopy and vapor-phase (or gas-liquid) chromatography has been observed. Instruments for these methods have become indispensable tools in the analytical treatment of fluorinated mixtures, complexes, and compounds The detailed applications of the instrumentation are covered later in this chapter. 

Overview Principles Instrumentation. Nuclear Magnetic Resonance Spectroscopy-Applicable Elements Fluorine-19 Nitrogen-15 Phosphorus-31 Organometallic Compounds. Nuclear Magnetic Resonance Spectroscopy Applications Food Pharmaceutical. Nuclear Magnetic Resonance Spectroscopy Techniques Nuclear Overha-user Effect Multidimensional Proton Solid-State. 

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