Deutsch Intern
    Research group of Ingo Fischer

    Photoionization with Synchrotron Radiation

    We investigate the cationic structure, photoionisation and dissociative photoionisation of molecules in the VUV-spectral range using synchrotron radiation. We focus on reactive intermediates, like radicals and carbenes. We obtain ionisation and appearance energies, data that are relevant for astrochemistry, the chemistry of planetary ionospheres and for the investigation of chemical processes in flames. As additional classes of molecules we investigate cyclophanes and boron-containing compounds. The experiments are carried out at the storage rings Soleil (St. Aubin/F) with Christian Alcaraz and Swiss Light Source (SLS, Paul-Scherrer-Institut/CH) with Patrick Hemberger and Andras Boedi.  At both facilities beamlines designated for the VUV range are available. Members of our group tyoically travel for one week to one of the facilities and collect data.

    The project is financially supported by the "Deutsche Forschungsgemeinschaft".

    Coworker: Engelbert Reusch, Domenik Schleier

    Selected Publication:


    F. Holzmeier, I. Fischer, B. Kiendl, A. Krueger, A. Bodi, Patrick Hemberger
    On the absolute photoionization cross section and dissociative photoionization of cyclopropenylidene
    Phys. Chem. Chem. Phys. 18, 9240 (2016)

    F. Holzmeier, M. Lang, I. Fischer, X. Tang, B. Cunha de Miranda, C. Romanzin, C. Alcaraz,
    P. Hemberger
    Threshold Photoelectron Spectroscopy of Unstable N-Containing Compounds: Resolution of ?K subbands in HNCO+ and Vibrational Resolution in NCO+
    J. Chem. Phys. 142, 184306 (2015)

    F. Holzmeier, M. Lang, P. Hemberger, A. Bodi, M. Schäfer, R. Dewhurst, H. Braunschweig, I. Fischer
    Photoionization and Pyrolysis of a 1,4-Azaborinine: Retro-Hydroboration in the Cation and Identification of Novel Organoboron Ring Systems
    Chem. Eur. J. 20, 9683 (2014)

    F. Holzmeier, M. Lang, P. Hemberger, I. Fischer
    Improved Ionization Energies for the Two Isomers of Phenylpropargyl Radical
    ChemPhysChem 15, 3489 (2014)