Hannover 2016 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MO: Fachverband Molekülphysik
MO 11: Posters 2: Novelties in Molecular Physics: Femtosecond Spectroscopy, Quantum Control, Electronic Spectroscopy, Biomolecules and Photochemistry
MO 11.11: Poster
Dienstag, 1. März 2016, 16:30–19:00, Empore Lichthof
Angle-resolved spectroscopy of electron emissions by chiral molecules — •Jan Dreismann and Stefan Schippers — AG Atom- und Molekülphysik, Justus-Liebig-Universität Gießen
Chirality of molecules is of essential importance to their effect in chemical reactions. The understanding of the importance of chiral molecules in biology and medicine is growing. However the physical properties of chiral systems are not well-known until now. There are many open questions like the chirality’s influence on the molecules’ atomic structure and electron dynamics. Interactions of polarized photons or electrons with chiral molecules can give insights in this unkown physics.
An electron spectrometer ESA-22 with angular resolution is used for analysis of electrons from these reactions. Electrons emitted in the spectrometers scattering plane pass electrostatic electrodes for energy separation and then are detected on 22 channel-electron-multipliers. Changes to the existing setup had to be made for using an molecular gas target and an electron beam instead of a photon beam.
We present first experimental spectra of Methyl lactate (C4H8O3) taken after the refurbishments. Electron impact on this molecule leads to fragmentation thus we observe angle resolved Auger spectra for the main components oxygen and carbon.