Accession Number:
ADA329694
Title:
A Novel Photochemical Interfacial Approach to the Degradation of Hazardous Materials
Descriptive Note:
Final rept. 1 Jun 93-31 May 97
Corporate Author:
COLUMBIA UNIV NEW YORK DEPT OF CHEMISTRY
Personal Author(s):
Report Date:
1997-07-01
Pagination or Media Count:
5.0
Abstract:
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.
Descriptors:
Subject Categories:
- Organic Chemistry
- Radiation and Nuclear Chemistry
- Atomic and Molecular Physics and Spectroscopy