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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Time-resolved resonance Raman investigation of selected para-substituted phenylnitrenium ions and the 2-fluorenylnitrenium ion reaction with guanosine

Chan, Pik-ying. January 2005 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2006. / Title proper from title frame. Also available in printed format.
22

Resonance Raman, time-resolved resonance Raman and density functional theory study of Benzoin diethyl phosphate, selected P-Hydroxy and P-methoxy substituted phenacyl ester phototrigger and model compounds

Chan, Wing-sum. January 2005 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2006. / Title proper from title frame. Also available in printed format.
23

Time-resolved resonance Raman investigation of selected para-substituted phenylnitrenium ions and the 2-fluorenylnitrenium ionreaction with guanosine

Chan, Pik-ying., 陳碧瑩. January 2005 (has links)
published_or_final_version / abstract / Chemistry / Doctoral / Doctor of Philosophy
24

Time-resolved resonance raman and density functional theory studies ofselected arylnitrenium ions and their reactions with guanosinederivatives and aryl azides

Xue, Jiadan., 薛佳丹. January 2008 (has links)
published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy
25

Development of new polymer-supported reagents for organic synthesis, solvent effects in samarium promoted allylic alcohol cyclopropanationreactions and time resolved resonance studies of the photodeprotectionof p-hydroxyphenacyl caged phototrigger compounds

Kan, Tze-wai, Jovi., 簡紫慧. January 2006 (has links)
published_or_final_version / abstract / Chemistry / Doctoral / Doctor of Philosophy
26

Time-resolved resonance raman and density functional theory studies ofthe photochemistry of (S)-ketoprofen

Chuang, Yung-ping., 莊蓉萍. January 2008 (has links)
published_or_final_version / Chemistry / Master / Master of Philosophy
27

Raman and NMR Relaxation Studies of Molecular Dynamics in Liquids

Rodriguez, Arturo A. (Arturo Angel) 08 1900 (has links)
Raman vibrational bands are sensitive to fluctuations in the molecular environment. Variations in the bandwidth and peak position can then be utilized to monitor molecular forces and interactions present in condense phases. Nuclear Magnetic Resonance (NMR) provides a convenient probe for the study of molecular reorientation in liquids since nuclear spin relaxation times are dependent on the details of molecular motion. Presented here is the solvent study of the Raman bandwidths and frequency displacements of the mode of the compounds CH3MCI3 (M = C, Si, Ge, Sn) in a number of solvents of widely varying molecular structure. Also, a detailed isotope dilution study of the modes in CH2CI2/CD2CI2 mixtures is presented. In this set of experiments, I observed broadening of the v1 mode of CH2C12 upon dilution,which is the first experimental observation of such behavior. The temperature-dependent carbon-13 relaxation times and nuclear Overhauser enhancements in neat dichloromethane were measured. In this study we found that the molecular reorientation of this molecule was highly anisotropic, but could be well characterized assuming quasi-symmetric top behavior. In addition, in order to gain a more complete understanding of the reorientational dynamics in dichloromethane, we analyzed the 13-C NMR relaxation of CH2CI2 both in "inert" solvents of differing viscosities and in interactive solvents of varying Lewis basicities. Various theoretical models were also applied in order to characterize dichloromethane1s reorientational dynamics.
28

Development of new polymer-supported reagents for organic synthesis, solvent effects in samarium promoted allylic alcohol cyclopropanation reactions and time resolved resonance studies of the photodeprotection of p-hydroxyphenacyl caged phototrigger compounds

Kan, Tze-wai, Jovi. January 2006 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2007. / Title proper from title frame. Also available in printed format.
29

Resonance raman investigation of metal to ligand charge transfer transitions in selected inorganic complexes

Cheng, Yung-fong, Yvonne. January 2001 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2001. / Includes bibliographical references (leaves 80-85).
30

Resonance Raman intensity analysis of chlorine dioxide, nitrosyl chloride, and isopropyl nitrate in solution /

Nyholm, Bethany Paige. January 2003 (has links)
Thesis (Ph. D.)--University of Washington, 2003. / Vita. Includes bibliographical references (leaves 154-161).

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