Direct Determination of Molecular Handedness via Coulomb Explosion Imaging

29th International Conference on Photonic, Electronic, and Atomic Collisions

Pitzer, M.^1 ; Kunitski, M.^1 ; Kastirke, G.^1 ; Jahnke, T.^1 ; Bauer, T.^1 ; Goihl, C.^1 ; Trinter, F.^1 ; Schober, C.^1 ; Henrichs, K.^1 ; Becht, J.^1 ; Zeller, S.^1 ; Gassert, H.^1 ; Waitz, M.^1 ; Kuhlins, A.^1 ; Wiegandt, F.^1 ; Wallauer, R.^1 ; Schmidt, L Ph H.^1 ; Mazenauer, M.^3 ; Spenger, B.^3 ; Marquardt, S.^2 ; Schmidt-Böcking, H.^1 ; Stohner, J.^3 ; Dörner, R.^1 ; Schöffler, M.S.^1 ; Berger, R.^2

Institut3 for Nuclear Physics, Goethe-Universität, Max-von-Laue-Str. 1, Frankfurt

60438, Germany^1

Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Str. 4, Marburg

35032, Germany^2

Institute of Chemistry and Biological Chemistry, Zurich University of Applied Sciences, Campus Reidbach, Einsiedlerstr. 31, Wädenswil

8820, Switzerland^3

关键词: Absolute configuration;    Chiral molecule;    Coulomb explosion imaging;    Direct determination;    Femto-second laser;    Fragmentation pathways;    Reaction microscopes;    X-ray synchrotron;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/11/112065/pdf
DOI  :  10.1088/1742-6596/635/11/112065

来源: IOP

【 摘 要 】

In this work, we show that the direct determination of a chiral molecule's absolute configuration can be achieved with Coulomb Explosion Imaging in a COLTRIMS reaction microscope. We compare the results after ionisation with femto-second laser pulses and with X-ray synchrotron light. Different fragmentation pathways of the prototypical chiral molecule CHBrClF are identified that carry information on the handedness. The applicabilty of the technique towards bigger molecules is discussed.