Communication: Identification of daughter ions through their electronic spectroscopy at low temperature

Journal Article · Tue Oct 07 00:00:00 EDT 2014 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4896981· OSTI ID:22436528

Dedonder, Claude; Féraud, Géraldine; Jouvet, Christophe ^[1]

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1. Aix-Marseille Université, CNRS, PIIM, UMR-7345, Marseille Cedex 20 (France)

We present experimental results on photofragmentation of cooled fragments issued from the photofragmentation of cold parent ions. The cooling of the daughter ions at a few K allows its characterization not only through its fragmentation pattern but also through its well resolved electronic spectroscopy. The proof of principle of the method is demonstrated on the photofragment resulting from C{sub α}–C{sub β} bond rupture in protonated tyrosine (TyrH{sup +}). The analysis of the daughter ion (m/z 108) photofragmentation spectrum is in agreement with the proposed mechanism implying a proton transfer to the phenyl ring as the first step of the fragmentation mechanism of TyrH{sup +}.

• OSTI ID: 22436528
• Journal Information: Journal of Chemical Physics, Vol. 141, Issue 13; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
IONS
PROTONS
SPECTRA
SPECTROSCOPY
TYROSINE