1. Department of Chemistry, Ångström Laboratory, Uppsala University, P.O. Box 538, SE-751 21 Uppsala, Sweden
2. Department of Information Technology, Uppsala University, P.O. Box 337, SE-751 05 Uppsala, Sweden
3. Chemical and Pharmaceutical Development, RISE Research Institutes of Sweden, SE-151 36, Södertälje, Sweden
4. Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology, SE-114 28, Stockholm, Sweden