Ultrafast photochemical processes in 1,2-dichloroethene measured with a universal XUV probe.

ABSTRACT: The presence of two chlorine atoms in 1,2-dichloroethene allows for isomerization around the double bond. This isomerization can lead to rich photochemistry. We present a time-resolved pump-probe photoelectron spectroscopy measurement on both the cis- and trans- isomers of 1,2-dichloroethene. A universal XUV probe of 22.3 eV is used allowing observation of photoelectrons formed anywhere on the potential energy surface, even from the ground-state or dissociation products. Following excitation with a 200 nm pump both ultrafast excited state dynamics and product formation are observed within the time resolution of the experiment. Excited state population begins to return to the ground state on an ultrafast time scale (<70 fs) and population of products channels is observed on th

SUBMITTER: McGhee HG 

PROVIDER: S-EPMC11563349 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature