Author/Authors :
Fujiwara، نويسنده , , Takashige and Reichardt، نويسنده , , Christian and Aaron Vogt، نويسنده , , R. and Crespo-Hernلndez، نويسنده , , Carlos E. and Zgierski، نويسنده , , Marek Z. and Lim، نويسنده , , Edward C.، نويسنده ,
Abstract :
Concerted ultrafast time-resolved spectroscopic experiments and ab initio computational (TDDFT) studies of the electronic transitions of 4-fluoro-N,N-dimethylaniline (FDMA) have been performed to investigate the mechanism of photo-induced intramolecular charge transfer (ICT). The compound FDMA shows dual fluorescence from a π π ∗ state and a closely-lying twisted intramolecular charge transfer (TICT) state in both n-hexane and acetonitrile. The very similar lifetimes observed for the two emission bands indicate that the π π ∗ and the TICT states are effectively in thermal equilibrium at room temperature.
