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SAMOP 2021 – scientific programme

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MO: Fachverband Molekülphysik

MO 7: Poster 1

MO 7.17: Poster

Thursday, September 23, 2021, 17:30–19:30, P

Photoelectron diffraction off conformer selected bio- molecules — •Ludmila Schneider1, Melby Johny2, Hubertus Bromberger2, Florian Trinter3, Sebastian Trippel2 und Jochen Küpper1,2,31Department of Physics, Universität Hamburg — 2Center for Free-Electron Laser Science,Deuschtes Electronen Sychrotron DESY — 3Department of Physics, Goethe Universität Frankfurt

Angular measurements of photoelectrons gave us a whole new under- standing of the inner structures of molecules. By investigating the recoil frame photoelectron angular distribution from molecules with a known orientation or by studying ion and electron appearance in co- incidence, it is possible the reveal the geometry of the molecule. In our present work, we look at the molecule 3-chloro-phenol (3CP) an aromatic alcohol with a chlorine, with the use of a Reaction Microscope at PETRA III synchrotron light source. We obtained 3D velocity vectors of the chlorine atom of 3CP (using 250 to 500 eV light), in coincidence to the arrival of various ion fragments of 3CP. Ultimately, this will provide us with knowledge about the electronic and geometric structures of the cis and trans isomers of 3CP.

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