Abstract
This paper presents results from femtosecond time-resolved studies of the ultrafast internal conversion in 1,3,5-hexatriene following excitation of the 1{sup 1}B{sub u} state at around 250 nm. The internal conversion process is investigated using time-delayed single and multiple photon ionization with 350 nm and 310 nm probe pulses. The initial step in the internal conversion is found to be very fast (<100 fs) as expected from absorption line width measurements. However we are able to observe the subsequent time evolution of the molecule for more than 1 ps. The internal conversion appears to proceed through an intermediate state, likely to be the 2{sup 1}A{sub g} electronic state, that is seen to decay with a approximately 250 fs time constant. 44 refs., 8 figs.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
