Picosecond Laser Studies of Excited State Proton Transfer.
Final rept. 1 Sep 77-30 Sep 80,
COLUMBIA UNIV NEW YORK DEPT OF CHEMISTRY
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Picosecond laser techniques were both used and developed to obtain new information on ultrafast molecular processes in liquids. From these studies, primarily of organic molecules, were have gained insight into the physical and chemical pathways by which excited state molecules dissipate their energy by proton and electron transfer phenomena, the nature of intermolecular motions cage effects in chemical reactions and intramolecular motions about methylene groups, photodissociation of excited molecules and energy relaxation in the fragments generated, e.g. diphenylcarbene, the photoionization and subsequent electron solvation dynamics of pyrene in alcohols. The information we have obtained has important implications in the photostability of dye lasers and polymer systems, the development of new lasers based on the generation of large excited state populations in transient species and the general effects of intense lasers on materials. Author
- Lasers and Masers
- Atomic and Molecular Physics and Spectroscopy