Author/Authors :
Zhong، نويسنده , , Dongping and Diau، نويسنده , , Eric W.-G and Bernhardt، نويسنده , , Thorsten M and De Feyter، نويسنده , , Steven J. Roberts ، نويسنده , , John D and Zewail، نويسنده , , Ahmed H، نويسنده ,
Abstract :
In this Letter, we report the ultrafast dynamics of isomerization and ring opening of azines, using femtosecond-resolved mass spectrometry. The experimental results and theoretical DFT/ab initio calculations elucidate the reaction mechanism and indicate the crucial role of conical intersections in driving these forbidden, ground-state processes. The global motion, initiated by fs wavepackets, is an important concept for nonradiative and reactive processes in polyatomics.