TY  - EJOUR
AU  - Music, Valerija
AU  - Allum, Felix
AU  - Inhester, Ludger
AU  - Schmidt, Philipp
AU  - Boll, Rebecca
AU  - Baumann, Thomas M.
AU  - Brenner, Günter
AU  - Brouard, Mark
AU  - Burt, Michael
AU  - Demekhin, Philipp V.
AU  - Dörner, Simon
AU  - Ehresmann, Arno
AU  - Galler, Andreas
AU  - Grychtol, Patrik
AU  - Heathcote, David
AU  - Kargin, Denis
AU  - Larsson, Mats
AU  - Lee, Jason W. L.
AU  - Li, Zheng
AU  - Manschwetus, Bastian
AU  - Marder, Lutz
AU  - Mason, Robert
AU  - Meyer, Michael
AU  - Otto, Huda
AU  - Passow, Christopher
AU  - Pietschnig, Rudolf
AU  - Ramm, Daniel
AU  - Rolles, Daniel
AU  - Schubert, Kaja
AU  - Schwob, Lucas
AU  - Thomas, Richard D.
AU  - Vallance, Claire
AU  - Vidanovic, Igor
AU  - Schmising, Clemens von Korff
AU  - Wagner, René
AU  - Zhaunerchyk, Vitali
AU  - Walter, Peter
AU  - Bari, Sadia
AU  - Erk, Benjamin
AU  - Ilchen, Markus
TI  - Wavelength-Dependent Photodissociation of Iodomethylbutane
IS  - arXiv:2502.16572
M1  - PUBDB-2025-02061
M1  - arXiv:2502.16572
PY  - 2025
N1  - 12 pages, 9 figures
AB  - Ultrashort XUV pulses of the Free-Electron-LASer in Hamburg (FLASH) were used to investigate laser-induced fragmentation patterns of the prototypical chiral molecule 1-iodo-2-methyl-butane (C<sub>5</sub>H<sub>11</sub>I) in a pump-probe scheme. Ion velocity-map images and mass spectra of optical-laser-induced fragmentation were obtained for subsequent FEL exposure with photon energies of 63 eV and 75 eV. These energies specifically address the iodine 4d edge of neutral and singly charged iodine, respectively. The presented ion spectra for two optical pump-laser wavelengths, i.e., 800 nm and 267 nm, reveal substantially different cationic fragment yields in dependence on the wavelength and intensity. For the case of 800-nm-initiated fragmentation, the molecule dissociates notably slower than for the 267-nm pump. The results underscore the importance of considering optical-laser wavelength and intensity in the dissociation dynamics of this prototypical chiral molecule that is a promising candidate for future studies of its asymmetric nature.
LB  - PUB:(DE-HGF)25
DO  - DOI:10.3204/PUBDB-2025-02061
UR  - https://bib-pubdb1.desy.de/record/631864
ER  -