The Mechanism of singlet (1) to triplet (1) Nonradiative Process in Quinoxaline by Zeeman-PMDR Spectroscopy.
Abstract
It is demonstrated that the results of the Zeeman effect on the observed phosphorescence spectrum at low temperatures can yield information concerning the mechanism of the singlet (1) to triplet (1) nonradiative process. The results of this as well as the Zeeman-PMDR technique support the direct singlet (1)(n,pi*) to triplet (1)(pi,pi*) intersystem crossing mechanism for quinoxaline in durene, in spite of the larger energy gap involved (as compared with the singlet (1) to triplet (2) to triplet (1) mechanism).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 11, 1975
- Accession Number
- ADA012920
Entities
People
- Mostafa El-Sayed
- Paul E. Zinsli
Organizations
- University of California, Los Angeles