Journal article
Excited-state dynamics in 8-hydroxyquinoline dimers
Chemical physics letters, Vol.349(1-2), pp.37-42
2001
DOI: 10.1016/S0009-2614(01)01173-3
Abstract
Electronic excitation of the 8-hydroxyquinoline dimer in cyclohexane induces a transient electronic absorption at wavelengths from 400 to 530 nm with a 1.7±0.2-ps single exponential decay. The similarity between 8-hydroxyquinoline and 7-azaindole, a widely studied excited-state proton transfer system, suggests that the decay reflects the excited-state proton transfer. Measurements on the deuterated dimer show no kinetic isotope effect, which is consistent with previous studies concluding that the proton transfer in 8-hydroxyquinoline is barrierless. These results suggest that excited-state proton transfer takes only a few picoseconds in 8-hydroxyquinoline dimers.
Details
- Title: Subtitle
- Excited-state dynamics in 8-hydroxyquinoline dimers
- Creators
- Christopher M Cheatum - Department of Chemistry, University of Wisconsin - Madison, 1101, University Avenue, Madison, WI 53706-1396, United StatesMax M Heckscher - Department of Chemistry, University of Wisconsin - Madison, 1101, University Avenue, Madison, WI 53706-1396, United StatesF. Fleming Crim - Department of Chemistry, University of Wisconsin - Madison, 1101, University Avenue, Madison, WI 53706-1396, United States
- Resource Type
- Journal article
- Publication Details
- Chemical physics letters, Vol.349(1-2), pp.37-42
- Publisher
- Elsevier Science
- DOI
- 10.1016/S0009-2614(01)01173-3
- ISSN
- 0009-2614
- eISSN
- 1873-4448
- Language
- English
- Date published
- 2001
- Academic Unit
- Liberal Arts and Science Admin; Chemistry
- Record Identifier
- 9984216726902771
Metrics
1 Record Views