University of Illinois Urbana-Champaign

Molecular Dynamics and Spin-Spin Interactions in Complex Systems: High Field and Multifrequency EPR Approach

Smirnova, Tatyana Ivanovna

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Description

Title
Molecular Dynamics and Spin-Spin Interactions in Complex Systems: High Field and Multifrequency EPR Approach
Author(s)
Smirnova, Tatyana Ivanovna
Issue Date
1997
Doctoral Committee Chair(s)
Belford, R. Linn
Department of Study
Chemistry
Discipline
Chemistry
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Chemistry, Physical
Language
eng
Abstract
It is shown that at high magnetic fields the Gd$\sp{3+}$ ion itself serves a sensitive probe for the microenvironment. This sensitivity allows, for example, observation of pH changes and measurement of partitioning of the lipophilic Gd$\sp{3+}$ complexes within the phospholipid membranes. Variations in the width and apparent g-factor of the Gd$\sp{3+}$ EPR spectra with the microenvironment observed at high fields are interpreted as changes in the zero field splitting of the complex. This argument is supported by multifrequency EPR data from 9 to 249 GHz.
Graduation Semester
1997
Type of Resource
text
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http://hdl.handle.net/2142/84372

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