The S sub 0 to S sub 2 Laser Photoexcitation Spectrum and Excited State Dynamics of Jet-Cooled Acetophenone.
Abstract
The S2 from S0 photoexcitation spectrum of jet cooled acetophenone is presented. The observed homogeneously broadened linewidths indicate S2 lifetimes < or = 0.26 fs while the measured emission lifetimes range from 540 + or - 30 ns for S0 O0 superscript 0 excitation to 130 + or - 50 ns for S2 12 1/2 excitation. The dynamics revealed by the spectrum are discussed in terms of the known photochemical and photophysical rates of the excited states of acetophenone. Arguments are presented which identify the emitting state as a known dissociative triplet state of acetophenone.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1986
- Accession Number
- ADA172392
Entities
People
- Elliot R. Bernstein
- J. A. Warren
Organizations
- Colorado State University