Y. Ichino et al., INVESTIGATION OF LOCAL-STRUCTURE OF GLASS-FORMING LIQUIDS BY FLUORESCENCE OF DOPED DYE MOLECULES, Journal of luminescence, 72-4, 1997, pp. 432-434
The weighted density of states of low-frequency. vibrational modes has
been determined in 1-propanol doped with chlorophyll b by means of si
te-selective fluorescence spectroscopy. The resonance fluorescence spe
ctra calculated have been found not to reproduce the measured ones eve
n below the glass transition temperature of the solvent. This result i
s discussed on the basis of the anharmonic character of the vibrationa
l modes.