Ultrafast Hydrogen Migration in Photoionized Glycine

Authors :: Francesca Calegari
Mattea Carmen Castrovilli
Paola Bolognesi
Lorenzo Avaldi
Mauro Nisoli
Patrick O'Keeffe
R Cireasa
Andrea Trabattoni
Source :: The journal of physical chemistry letters 9 (2018): 6012–6016. doi:10.1021/acs.jpclett.8b02089, info:cnr-pdr/source/autori:Castrovilli, M. C.; Trabattoni, A.; Bolognesi, P.; O'Keeffe, P.; Avaldi, L.; Nisoli, M.; Calegari, F.; Cireasa, R./titolo:Ultrafast Hydrogen Migration in Photoionized Glycine/doi:10.1021%2Facs.jpclett.8b02089/rivista:The journal of physical chemistry letters/anno:2018/pagina_da:6012/pagina_a:6016/intervallo_pagine:6012–6016/volume:9, The journal of physical chemistry letters 9(20), 6012-6016 (2018). doi:10.1021/acs.jpclett.8b02089, The Journal of Physical Chemistry Letters
Publication Year :: 2018
Abstract: Hydrogen migration in the glycine cation has been investigated using a combination of a short train of attosecond extreme ultraviolet pulses with few-optical-cycle near-infrared pulses. The yield of the photofragments produced has been measured as a function of pump–probe delay. These time-dependent measurements reveal the presence of a hydrogen migration process occurring in 48 fs. Previous mass spectrometric experiments and theoretical calculations have allowed us to identify the conformations and cation states involved in the process induced by the broad band extreme ultraviolet radiation.