UV and VUV ionization of organic molecules, clusters, and complexes


Marksteiner, Markus, Haslinger, Philipp, Sclafani, Michele, Ulbricht, Hendrik and Arndt, Markus (2009) UV and VUV ionization of organic molecules, clusters, and complexes. The Journal of Physical Chemistry A, 113, (37), 9952-9957. (doi:10.1021/jp905039f).

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Original Publication URL: http://dx.doi.org/10.1021/jp905039f

Description/Abstract

The generation of organic particle beams is studied in combination with photoionization using UV radiation at 266 nm and vacuum ultraviolet (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 codesorbed in the source. We also find that the ion signal of gramicidin can be increased by a factor of 15 when the photon energy is increased from 4.66 to 7.9 eV.

Item Type: Article
Related URLs:
Subjects: Q Science > Q Science (General)
Divisions: University Structure - Pre August 2011 > School of Physics and Astronomy
ePrint ID: 144271
Date Deposited: 14 Apr 2010 08:37
Last Modified: 27 Mar 2014 19:05
URI: http://eprints.soton.ac.uk/id/eprint/144271

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