Berlin 2014 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 27: Poster: Photoionization
A 27.12: Poster
Dienstag, 18. März 2014, 16:30–18:30, Spree-Palais
Ionization yield in the resonant C 1s electron excitation range of chiral terpene molecules — •Christian Ozga1, Benjamin Kambs1, Kari Jänkälä2,3, Philipp Schmidt1, Andreas Hans1, Philipp Reiß1, André Knie1, and Arno Ehresmann1 — 1Institut für Physik und Center for Interdisciplinary Nanostructure Science and Technology, Universität Kassel, D-34132 Kassel, Germany — 2Department of Physics, University of Oulu, P.O. Box 3000, 90014 Oulu, Finland — 3Institute for Experimental Physics, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
Inner shell C 1s electrons were excited in different chiral terpene molecules by monochromatized synchrotron radiation with an energy close to the C 1s electron ionization threshold. Undispersed fluorescence excitation within the range between 280 nm and 680 nm and relative ionization yields have been measured. The ionization yield measurements were compared to time dependent density functional theory calculations, revealing the site specificity of the resonant inner shell excitations. This site specificity is discussed as a means for the excitation of individual stereocenters in the investigated chiral molecules.