UV and VUV Ionization of Organic Molecules, Clusters, and Complexes

Markus Marksteiner, Philipp Haslinger, Michele Sclafani, Hendrik Ulbricht, Markus Arndt

Publications: Contribution to journalArticlePeer Reviewed


The generation of organic particle beams is studied in combination with photoionization using uv radiation at 266 nm and vuv light at 157 nm. Single-photon ionization with pulsed vuv light turns out to be sensitive enough to detect various large neutral biomolecular complexes ranging from metal-amino acid complexes to nucleotide clusters and aggregates of polypeptides. Different biomolecular clusters are shown to exhibit rather specific binding characteristics with regard to the various metals that are co-desorbed in the source. We also find that the ion signal of gramicidin can be increased by a factor of fifteen when the photon energy is increased from 4.66 eV to 7.9 eV.
Original languageEnglish
Pages (from-to)9952-9957
Number of pages6
JournalThe Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory
Issue number37
Publication statusPublished - 2009

Austrian Fields of Science 2012

  • 103026 Quantum optics

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