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Anisotropic EPR and ENDOR studies of sulfur-containing heterocyclic compounds adsorbed on silica-alumina surfaces

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Title: Anisotropic EPR and ENDOR studies of sulfur-containing heterocyclic compounds adsorbed on silica-alumina surfaces
Author(s): Youn, Dennis James
Doctoral Committee Chair(s): Belford, R. Linn
Department / Program: Chemistry
Discipline: Chemistry
Degree Granting Institution: University of Illinois at Urbana-Champaign
Degree: Ph.D.
Genre: Dissertation
Subject(s): Chemistry, Physical
Abstract: The physical phenomenon of an organic molecule adsorbing onto a silica-alumina surface is a topic of great interest. Many questions concerning exactly how this phenomenon occurs still remain unanswered. Although Electron Paramagnetic Resonance and Electron-Nuclear Double Resonance techniques are sensitive to the radical species that are often produced upon adsorption of these molecules onto these surfaces, the analysis is very difficult and forbidding. Anisotropic interactions that are present in these systems makes characterization of the experimental spectra a very challenging problem. It is possible, however, to obtain crucial information about the interaction between the molecule and the catalyst surface through the analysis of these complex spectra. This thesis examines and analyzes an adsorbate/catalyst system with special qualities which are of interest to high-sulfur coal researchers. It also presents a general method which was developed to perform the analysis of spectra of highly anisotropic systems correctly.
Issue Date: 1989
Type: Text
Language: English
URI: http://hdl.handle.net/2142/19506
Rights Information: Copyright 1989 Youn, Dennis James
Date Available in IDEALS: 2011-05-07
Identifier in Online Catalog: AAI9011086
OCLC Identifier: (UMI)AAI9011086
 

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