0467213 - BTÚ 2017 RIV NL eng J - Journal Article
Taherkhani, M. - Armentano, A. - Černý, Jiří - Muller-Dethlefs, K.
Threshold ionization spectroscopic investigation of supersonic jet-cooled, laser-desorbed Tryptophan.
Chemical Physics Letters. Roč. 657, Jul 16 (2016), s. 142-147. ISSN 0009-2614. E-ISSN 1873-4448
R&D Projects: GA MŠMT(CZ) ED1.1.00/02.0109
Institutional support: RVO:86652036
Keywords : RESOLVED PHOTOELECTRON-SPECTROSCOPY * GAS-PHASE * MASS-SPECTROMETRY
Subject RIV: EB - Genetics ; Molecular Biology
Impact factor: 1.815, year: 2016 ; AIS: 0.483, rok: 2016
DOI: https://doi.org/10.1016/j.cplett.2016.05.061

Tryptophan (Trp) was studied by two-colour Photoionization Efficiency (PIE) and Mass Analysed Threshold Ionization (MATI) spectroscopy using a laser desorption apparatus. Conformer A of Trp was excited into the S-1 state (34,878 cm (1)) and the second laser was scanned around the D-0 cation ground and the D-1 excited state. No ionization signal into the D-0 state could be found, but a clear threshold was observed for the D-1 state with an ionization energy of 66,704 +/- 3 cm (1) (8.27 eV). This observation is explained in terms of the electronic configurations of the S-1 and cationic states. (C) 2016 Elsevier B. V. All rights reserved.
Permanent Link: http://hdl.handle.net/11104/0265329