Journal of the American Chemical Society, Vol.127, No.47, 16529-16534, 2005
Experimental evidence for ultrafast electronic relaxation in molecules, mediated by diffuse states
The existence of a mediating state for the ultrafast electronic relaxation in ethylenic-like molecules has been shown by femtosecond electron imaging techniques. This state is of Rydberg character, and its high efficiency is due to its ability to link the electron distributions of the initial and final electronic states.