Femtosecond-picosecond laser photolysis studies on the photoinduced charge separation and charge recombination of a produced ion pair state of some typical intramolecular exciplex compounds in alkanenitrile solvents

Femtosecond and picosecond laser photolysis and time-resolved absorption spectral studies have been made to observe directly the photoinduced charge separation (CS) and charge recombination (CR) of a produced CS state of aromatic amine (D) and aromatic hydrocarbon (A) combined systems: p-(CH 3 ) 2 N-Ph-(CH 2 ) n -(1-pyrenyl) (P n , n=1, 2, 3) and p-(CH 3 ) 2 N-Ph-(CH 2 ) n -(9-anthryl) (A n , n=0, 1, 2, 3), in alkanenitrile solvents