C. Joblin, Farid Salama, L. Allamandola
Apr 7, 1999
Citations
1
Influential Citations
50
Citations
Journal
Journal of Chemical Physics
Abstract
The electronic absorption and emission spectra of perylene (C20H12) isolated in rare gas (Ne, Ar) and N2 matrices are presented. While the electronic band systems show, in all matrices, the same fundamental frequencies as those observed in gas-phase jet experiments, the spectra in Ar and N2 matrices exhibit much more spectral structure. The observed structure points to strong host–guest interactions and provides new insight into the low frequency modes of perylene. In particular, the spacing observed at 11 and 16 cm−1 in the S0 and S1 states, respectively, might be attributed to the gerade accordion mode of perylene. This mode, which has never been observed directly in jet experiments, could be induced into activity in solid matrices.