Open AccessTheoretical Study of Ultrafast Electron Dynamics in Amino Acids
Author(s) -
David Ayuso,
Alicia Palacios,
Piero Decleva,
Fernando Martı́n
Publication year - 2015
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/635/11/112129
Subject(s) - ionization , glycine , amino acid , phenylalanine , chemistry , tryptophan , electron , quantum yield , yield (engineering) , molecule , chemical physics , ultrashort pulse , charge (physics) , ionic bonding , computational chemistry , atomic physics , physics , ion , optics , organic chemistry , biochemistry , nuclear physics , quantum mechanics , thermodynamics , fluorescence , laser
Prompt ioiuzatiou of large biological molecules may mince ultra fast charge migration along the molecular skeleton, preceding any unclear rearrangement[1, 2]. This phenomenon lots been recently observed in the amino acid phenylalanine [3] in a two-color pump probe experiment, where the production of ionic fragments Was measured as a function of the time delay between the two pulses and charge fluctuations manifested as sub-4.5 fs oscillations in the quantum yield of a spcific doubly charged fragment. We present our latcst results in glycine, and compare with previous findings in pheitylalanine [3]. We seek to perform a systematic study including larger aminoncids such as tryptophan