1. Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic and Center for Biomolecules and Complex Molecular Systems, Flemingovo nám. 2, 16610 Prague 6, Czech Republic, Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803-7303, Institut für Physik and Physikalische Technologien, Technische Universität Clausthal, Leibnizstr. 4, D-38678 Clausthal-Zellerfeld, Germany, and Institut für Physik, Universität Osnabrück, Barbarastr. 7, D...