Author/Authors :
Lippert، نويسنده , , H. and Ritze، نويسنده , , H.-H. and Hertel، نويسنده , , I.V. and Radloff، نويسنده , , W.، نويسنده ,
Abstract :
Applying femtosecond pump–probe spectroscopy at different wavelengths we demonstrate that for the indole molecule an efficient coupling does not exist between the initially excited ππ* state and the adjacent higher lying πσ* state. This result which is in contrast to corresponding theoretical studies is represented by a stable population of the ππ* state. The analysis of the time-dependent photoelectron spectra reveals further information about the energetics of the pump and probe processes.