| Type of Document |
Dissertation |
| Author |
Ams, Mark R.
|
| URN |
etd-04102007-154650 |
| Title |
Intramolecularly Sensitized Precipitons |
| Degree |
Doctor of Philosophy |
| Program |
Chemistry |
| School |
School of Arts and Sciences |
| Advisory Committee |
| Advisor Name |
Title |
| Craig S. Wilcox |
Committee Chair |
| Billy W. Day |
Committee Member |
| Joe Grabowski |
Committee Member |
| Stephane Petoud |
Committee Member |
|
| Keywords |
- ruthenium
- benzil
- isomerization
- trans
- cis
- separation
- precipiton
- stilbene
|
| Date of Defense |
2007-03-26 |
| Availability |
unrestricted |
Abstract
This dissertation describes the first intramolecularly activated precipitons. The isomerization process is induced by intramolecular triplet energy transfer from a covalently attached sensitizer. The intramolecular sensitization leads to a more rapid isomerization than can be achieved by intermolecular sensitization at accessible concentrations. Two different types of intramolecularly sensitized precipitons were investigated. The first precipiton receives intramolecular sensitization from a covalently attached metal complex (Ru(bpy)3Cl2). It was used in a model study for the sequestration of metal contaminants. The second precipiton receives intramolecular sensitization from a covalently attached organic compound (benzil). The preparation, photophysical properties, and photoisomerization kinetics of these precipitons, as well as the precipitation event, are discussed.
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mams_2etdPitt2007.pdf |
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