Femtosecond nonadiabatic cascade and subsequent photofragmentation of XUV excited caffeine molecule

Abstract: We found that the XUV excited caffeine undergoes nondadabatic cascade via more than 100 shake-up states within the time constant of 40 fs by using femtosecond XUV-NIR pump-probe photo-ion spectroscopy and the SAC-CI level of ab-initio many-body theory. This nonadiabatic cascade results in the photofragmentation to specific large fragments. Furether ionization by NIR probe during the cascade increases the small fragments CH3+, CO+ etc. This results show that both vibronic coupling and electron correlation are the keys for the femtochemistry in the highly-correlated electronic excited states

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch
• Notes: Journal of physics. Conference series. - 1412 (2020) , 142027, ISSN: 1742-6596

Contributors, Places and Time

• Event: Veröffentlichung
• (where): Freiburg
• (who): Universität
• (when): 2021
• Creator: Yamazaki, Kaoru ; Marciniak, Alexandre ; Maeda, Satoshi ; Reduzzi, Maurizio ; Despré, Victor ; Hervé, Marius ; Meziane, Mehdi ; Niehaus, Thomas ; Loriot, Vincent ; Kuleff, Alexander I. ; Schindler, Baptiste ; Compagnon, Isabelle ; Sansone, Giuseppe ; Lepine, Franck

Further information

• DOI: 10.1088/1742-6596/1412/14/142027
• URN: urn:nbn:de:bsz:25-freidok-1944120
• Rights: Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 13.06.2022, 4:08 AM CEST