1. Institute of Chemical and Bioengineering, ETH Zürich, 8093 Zürich (Switzerland), Fax: (+41) 43‐362‐1162, http://www.vanbokhoven.ethz.ch/
2. School of Chemistry, University of Southampton (UK)
3. Swiss Norwegian Beamlines (SNBL), ESRF, Grenoble (France)
4. European Synchrotron Radiation Facility (ESRF), Grenoble (France)
5. Paul Scherrer Institut, Villigen (Switzerland)
6. Fachbereich C/Physik, Universität Wuppertal (Germany)