A Novel Photochemical Interfacial Approach to the Degradation of Hazardous Materials
Final rept. 1 Jun 93-31 May 97
COLUMBIA UNIV NEW YORK DEPT OF CHEMISTRY
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Two studies are described. The first involved the use of time resolved electron spin resonance as a mechanistic and spectroscopic probe of two fundamental reactions of ketone photochemistry intermolecular hydrogen abstraction by the triplet state of benzophenone and triplet state alpha-cleavage of 1,3-diphenylacetone dibenzyl ketone. It was found that the forces restricting the ground state conformations of these ketones also restrict the triplet state conformations. The second study used steady-state spectroscopies and laser flash photolysis techniques to define the mechanism involved in biologically and medicinally related compounds employed as anticancer agents and a compound called A2-E, a bis-retinoid found inocular cells, believed to be associated with age-related macular degeneration.
- Organic Chemistry
- Radiation and Nuclear Chemistry
- Atomic and Molecular Physics and Spectroscopy