TRANSIENT RAMAN-SPECTRA AND STRUCTURE OF THE TWISTED EXCITED SINGLET-STATE OF TETRAPHENYLETHYLENE

Authors
TAHARA T HAMAGUCHI HO
Citation
T. Tahara et Ho. Hamaguchi, TRANSIENT RAMAN-SPECTRA AND STRUCTURE OF THE TWISTED EXCITED SINGLET-STATE OF TETRAPHENYLETHYLENE, Chemical physics letters, 217(4), 1994, pp. 369-374
Citations number
26
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
217
Issue
4
Year of publication
1994
Pages
369 - 374
Database
ISI
SICI code
0009-2614(1994)217:4<369:TRASOT>2.0.ZU;2-S
Abstract
Transient Raman spectra of the ''twisted'' S-1 state of tetraphenyleth ylene and its C-13 analogue have been measured. The olefinic C0C0 stre tching frequency changes drastically on going from the S-0 state to th e S-1 state, supporting a twisted configuration of S-1 tetraphenylethy lene. The CC stretching frequencies of the phenyl rings are discussed in relation to the zwitterionic nature of this S-1 state.