G. Pacchioni, P.S. Bagus, et al.
Zeitschrift für Physik D Atoms, Molecules and Clusters
The reflection spectrum of the first singlet charge transfer transition of anthracene-PMDA (pyromellitic dianhydride) crystal has been obtained at temperatures close to 2 K. The spectrum is polarized along the stack axis and consists of a series of vibronic bands, approximately 500 cm-1 wide, with impressed fine structure arising from intermolecular phonon modes. This fine structure is particularly prominent for the 00 band which starts with a zero-phonon line which is the most dominant feature of the entire spectrum. The zero-phonon line has a reflectivity of approximately 0.37 and a line width less than 5 cm-1. This is the first time that an absolute reflection spectrum of a charge transfer transition with such vibronic details has been obtained. A preliminary discussion of the nature of the transition is presented. © 1978.
G. Pacchioni, P.S. Bagus, et al.
Zeitschrift für Physik D Atoms, Molecules and Clusters
R.M. Shelby, R.M. Macfarlane, et al.
Applied Physics B Photophysics and Laser Chemistry
D. Haarer
Chemical Physics Letters
B. Pettinger, M.R. Philpott, et al.
Journal of Physical Chemistry