Abstract
Two-body Coulomb explosion processes of acetonitrile (CH 3CN) and deuterated acetonitrile (CD 3CN), CH 3CN 2+ → CH 3− n + + H n CN + and CD 3CN 2+ → CD 3− n + + D n CN + ( n = 0–2), in an intense laser field (0.15 PW/cm 2, 70 fs) are investigated by the coincidence momentum imaging method. The comparable yields derived for the three pathways ( n = 0–2) shows that the hydrogen atom migration proceeds in competition with the Coulomb explosion. The angular distributions of the fragment ions for n = 0 exhibits a sharp peak along the laser polarization direction while the angular distribution becomes more isotropic as n increases. Based on a least-squares analysis of the fragment anisotropy, the dissociation lifetimes of the doubly charged acetonitrile were determined, from which the time scale of the hydrogen migration as well as the deformation of the C–C–N skeleton prior to the explosion were discussed.
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 callMore From: Journal of Electron Spectroscopy and Related Phenomena
Disclaimer: 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.
