Herzberg-Teller active van der Waals modes in p-difluorobenzene-Ar detected by rotationally resolved UV spectroscopy
- Rotationally resolved UV spectra of the 000 (S1 ← S0) band and two van der Waals vibronic transitions of para-difluoroben-zene-Ar are analyzed. The rotational structure of the transition at 34 cm−1 to the blue of the origin is of a-type and differs from the parallel c-type structure of the origin and of the band at 42 cm−1 involving the stretching fundamental. For the a-type band the transition dipole moment is perpendicular to the plane of the aromatic ring, representing clear experimental proof for Herzberg-Teller coupling induced by a van der Waals mode. Possible pathways for the intensity borrowing and consequences for the assignment in other dimers are discussed.
| Author: | Ralf SussmannORCiDGND, R. Neuhauser, H. J. Neusser |
|---|---|
| Frontdoor URL | https://opus.bibliothek.uni-augsburg.de/opus4/120231 |
| ISSN: | 0009-2614OPAC |
| Parent Title (English): | Chemical Physics Letters |
| Publisher: | Elsevier BV |
| Place of publication: | Amsterdam |
| Type: | Article |
| Language: | English |
| Year of first Publication: | 1994 |
| Publishing Institution: | Universität Augsburg |
| Release Date: | 2025/03/12 |
| Volume: | 229 |
| Issue: | 1-2 |
| First Page: | 13 |
| Last Page: | 20 |
| DOI: | https://doi.org/10.1016/0009-2614(94)01006-4 |
| Institutes: | Fakultät für Angewandte Informatik |
| Fakultät für Angewandte Informatik / Institut für Geographie | |
| Fakultät für Angewandte Informatik / Institut für Geographie / Lehrstuhl für Physische Geographie mit Schwerpunkt Klimaforschung | |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften |
