Tracking Conical Intersection Dynamics of Tryptophan with Sub-20-fs UV Pulses

Autor:	Vishal K. Jaiswal, Ana M. de Paula, Giulio Cerullo, Marzio G. Gentile, Sandro De Silvestri, Piotr Kabacinski, Irene Conti, Barbara E. Nogueira de Faria, Marco Garavelli, Rocio Borrego-Varillas
Přispěvatelé:	Kabacinski P., Jaiswal V.K., Borrego-Varillas R., Nogueira De Faria B.E., Gentile M.G., Conti I., De Silvestri S., Garavelli M., De Paula A.M., Cerullo G., Nogueira de Faria B.E., de Silvestri S., de Paula A.M.
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Materials science Absorption spectroscopy Picosecond Excited state Ultrafast laser spectroscopy Tryptophan Tryptophan fs time-resolved spectroscopy QM calculations Conical intersection Nanosecond Photochemistry Spectroscopy conical intersection tryptophan time resolved spectroscopy
Popis:	Tryptophan is one of the three natural aromatic amino acids and can serve as local probe of photoreactions of proteins irradiated with UV light. However, the photophysics of tryptophan are complex, especially when the interaction with solvent is considered. The excited state evolution of tryptophan in condensed phase has been reported previously on picosecond and nanosecond time scales, using transient absorption (TA) spectroscopy [1] . Here we track the primary photoinduced processes in tryptophan using TA spectroscopy with unprecedented sub-30-fs temporal resolution [2] and compare them with state-of-the-art quantum mechanics/molecular mechanics computations [3] .
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89d805d102e7e322831914a2193fc9a9 http://hdl.handle.net/11585/884783 Zobrazit plný text záznamu