Penzkofer, Alfons and Ramelsperger, M. and Wittmann, M. (1996) Photoisomerization dynamics of DODCI studied by spectrally resolved fluorescence decay measurements. CHEMICAL PHYSICS, 208 (1). pp. 137-147. ISSN 0301-0104, 1873-4421
Full text not available from this repository.Abstract
The organic dye DODCI (3,3'-diethyloxadicarbocyanine iodide) in methanol and ethylene glycol is excited with picosecond light pulses at 527 nm (dominant N-isomer excitation) and the time dependence of the N-isomer and P-isomer fluorescence is monitored with a spectrometer-streak camera system. The slowed-down non-exponential N-isomer fluorescence and the time-delayed P-isomer fluorescence indicate S-1-state photoisomerization via an intermediate state (M). The energetic position of this intermediate state is determined. The formation of a further photoisomer (P2-isomer) emitting at the short wavelength side of the N-isomer is observed. Additionally the molecular reorientation is analysed by time-dependent fluorescence anisotropy measurements.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 3,3'-DIETHYLOXADICARBOCYANINE IODIDE DODCI; EXCITED-STATE; MODE-LOCKING; RELAXATION PROCESSES; LASER EXCITATION; GROUND-STATE; P-ISOMERS; PICOSECOND; DYE; ISOMERIZATION |
| Subjects: | 500 Science > 530 Physics 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Alfons Penzkofer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Jul 2023 04:55 |
| Last Modified: | 05 Jul 2023 04:55 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51597 |
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