M.R. Philpott, P.M. Grant, et al.
The Journal of Chemical Physics
Measurements are reported for the b-polarized reflection spectrum of anthracene crystals off the (001) face coated with solidified layers of some permanent gases. In the wavelength range 4020 to 3800 Å spanning the 0-0 vibronic transition to the first electronic state there are several narrow minima attributed to surface transitions. The minimum I at 3954 Å is shifted 11 Å to longer wavelengths by solidified air, whilst the rest of the spectrum exhibits little or no change. This red-shift, expecied for transitions to surface exciton states, is new evidence for the assignment of minimum I as such. In addition a new minimum at ca. 3985 Å has been observed on the long wavelength edge of the 0-0b reflection band, very close to minimum II at 3984 Å. © 1976.
M.R. Philpott, P.M. Grant, et al.
The Journal of Chemical Physics
K. Syassen, M.R. Philpott
The Journal of Chemical Physics
D. Haarer, M.R. Philpott, et al.
The Journal of Chemical Physics
A. Brillante, M.R. Philpott, et al.
The Journal of Chemical Physics