Title of article :
Following the decay dynamics of photoexcited 1,2,4-trimethylbenzene using femtosecond time-resolved photoelectron imaging
Author/Authors :
Liu، نويسنده , , Zhiming and Hu، نويسنده , , Chunlong and Li، نويسنده , , Tian-Shuai and Xu، نويسنده , , Yanqi and Wang، نويسنده , , Yanmei and Zhang، نويسنده , , Bing، نويسنده ,
Abstract :
The decay dynamics in excited states of 1,2,4-trimethylbenzene has been investigated by combining time-resolved photoelectron imaging with time-resolved mass spectroscopy. The ultrafast internal conversion from the initially optical excited S2 state to the vibration hot S1 state on time scale of 72 fs is observed. The lifetime of secondary populated S1 state was determined to be about 16.4 ps, which might be originated from internal conversion to ground state or intersystem crossing to triplet states.
