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ChemistryOrganic Chemistry

Picosecond Laser Studies of Excited State Processes

Authors: Kenneth B. Eisenthal; COLUMBIA UNIV NEW YORK DEPT OF CHEMISTRY
Abstract:
The completed research was directed at fundamental investigations of ultra fast chemical reactions, the generation and decay of reactive chemical intermediates, as well as the role of the solvent and molecular motions on chemical dynamics. The construction of an amplified CPM laser enabled the opportunity to prove chemical events occuring in the femtosecond time domain. The effects of molecular geometry, solvent and solute steric effects, on the chemical dynamics was explored. An important new component of the research was the studies of chemical phenomena on surfaces as well as in bulk media. The asymmetry of forces associated with liquid surfaces was found to impose new restraints and possibilities on the generation of chemical species; thus affecting the chemical species lifetimes, motions and pathways for reaction.

Description: Scientific rept. 1 Oct 84-30 Sep 87
Pages: 48
Report Date: 30 SEP 87
Contract Number: AFOSR-84-0013
Report Number: A606981

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Keywords relating to this report:
*CHEMICAL REACTIONS
*QUICK REACTION
*REACTION KINETICS
CARBENES
DYNAMICS
LASERS
LIGHT PULSES
LIQUIDS
MOLECULAR STRUCTURE
MOLECULES
MOTION
PULSED LASERS
SHORT RANGE_TIME_
SOLVENTS
SURFACES
TIME DOMAIN
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