1. Department
of Chemistry − BMC, Uppsala University, Box 576, SE-751 23 Uppsala, Sweden
2. Physical & Theoretical Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford GB-OX1 3QZ, United Kingdom
3. Center
for Free-Electron Laser Science, Deutsches Elektronen Synchrotron, DE-22607 Hamburg, Germany
4. Department
of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden