Author/Authors :
E.R. Middelhoek، نويسنده , , E.R. and Zhang، نويسنده , , H. and Verhoeven، نويسنده , , J.W. and Glasbeek، نويسنده , , M.، نويسنده ,
Abstract :
The dynamic Stokes shift of the donor-acceptor compound, PIDMP, in its lowest excited charge transfer state has been studied in a series of ethereal solvents at room temperature with a time resolution of about 300 fs. By means of the fluorescence upconversion method dynamic Stokes shifts of up to 2400 cm−1 on a subpicosecond time scale have been resolved. The observed dynamic Stokes shifts are due to solvation relaxation for which the kinetics is determined by rotational diffusion motions of the solvent molecules.
