Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"deuteriation"”.
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Vibrational spectroscopic studies of the structure and conformation of cyclic di-amino acid peptides
… I modes investigated show a downward shift on N-deuteriation, of the order of ~30cm-1, indicating that the C=O stretch is significantly coupled to the N-H bend. In stark contrast, this coupling is greater than that found in trans amide peptides, which have been reported to show deuterium shifts …
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Reductions by Cobalt-Catalyzed Production of Hydrogen Gas from NaBH4 in a Two-Chamber System
… situ</em> produced D<sub>2</sub> gas for the deuteriation of diverse organic molecules. (3) Compared to the use of compressed hydrogen gas, the ease of this method and general safety makes catalytic reductions amenable as a learning or synthesis module in undergraduate organic chemistry …
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Studies of hydrogen bonding in protonic ionic liquids and their binary mixtures
… Rutherford Appleton Laboratories. The selective deuteriation of the pure salts, and their deuteriated binary mixtures, was an important tool to determine the manner in which the hydrogen bonding networks were organised.<br/>In a preliminary study, the temperature dependence of the proton dynamics …
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Synthesis and characterisation of mononuclear and dinuclear rhenium carbonyl complexes
… Selective deuteriation of the bipyridyl ligands and the triazole ligand was also employed. The photophysical and electrochemical properties of all complexes were also examined. Methylation of the pyrazyl-triazole ligand was found to quench emission from …
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Novel Iridium (III) complexes for photocatalytic H2 generation from H2O using sunlight
… provided promising evidence on the effect of deuteriation on lifetimes and the role these complexes can play in OLED applications. Effort has taken in order to study intermolecular photocatalysis with these complexes. Chapter 6 gives an overview of all the work that has been carried out up to …
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Synthesis and kinetics of isomerisation of 2',6'-dihydroxychalcones
… of the preference for protonation over deuteriation at the 3-position of the flavanone during cyclisation of the mono-anions of 32 and 38, under kinetically-controlled conditions in H₂O - D₂O mixtures. The data obtained were not in accord with the those from kinetic isotope effect …
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Experimental (spectroscopic) and theoretical studies of rhodanine (2-Thio-4-Oxothiazolidine) and its derivatives
… in the solid state (protonated and deuteriated). Deuteriation studies revealed that not only are the protons attached to the nitrogen atom labile, but the protons of the active methylene group also undergo hydrogen-deuterium exchange. Comparisons of protonated and deuteriated spectra enable …