Wbrational frequencies and Franck-Condon factnrs derived from laser induced fluorcsccncc spcclra of JCt-COOkd perylcne obtalncd by Tramer and co-workers are presented for the two lowest-frequency outaf-plane deformat?on modes. Potential functions are calculated for the "butterfly" mode m the ground
Butterfly motion of the isolated pentacene molecule in its first-excited singlet state
โ Scribed by A. Amirav; U. Even; Joshua Jortner
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 339 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The energehcs and the energy-resolved decay of the S1 ('Bzu) electronically excited state of the pentacene molecule in seeded supersoruc beams has been investigated Two low-frequency, intense spectral features located at excess viirationa! energxes of 77 cm-* and 202 cm-'above the ongn were observed, and provide spectroscopic evidence For the quaripk?nanty of the isolated pentacene molecule m its first-exited singlet state.
๐ SIMILAR VOLUMES
Approximate open shell SCF MO theory in the CNDO/2 scheme confirms the 90ยฐ twisted geometry of singlet excited ethylene and gives values of 114' for angle HCH and 1.38h for Y&.