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Excited-State Dynamics of Protonated Aromatic Amino Acids

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Photophysics of Ionic Biochromophores

Part of the book series: Physical Chemistry in Action ((PCIA))

Abstract

The electronic spectroscopy and the electronic excited state dynamics of the three protonated aromatic amino acids (PAAAs) phenylalanine (Phe), tyrosine (Tyr) and tryptophan (Trp) are presented in this chapter. Ab-initio calculations combined with various experimental techniques such as coincidence experiments, pump-probe spectroscopy and photo-fragmentation of cold trapped ions have been implemented to work out the complex photophysical processes involved in these AAs. The results include photo-fragmentation spectra, excited-state lifetimes, full fragmentation patterns at fixed excitation energies and specific fragmentation channels as a function of the excitation energy. Fragmentation patterns depending on the electronic excited state are detailed.

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Dedonder, C., Féraud, G., Jouvet, C. (2013). Excited-State Dynamics of Protonated Aromatic Amino Acids. In: Brøndsted Nielsen, S., Wyer, J. (eds) Photophysics of Ionic Biochromophores. Physical Chemistry in Action. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-40190-9_9

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