Affiliation: | ‡Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, and Divisions of §Physical Chemistry and ¶Organic Chemistry and Biochemistry, Rudjer Boskovic Institute, Bijenicka c. 54, HR-10000 Zagreb, Croatia and the Institute of Molecular Biology and Biophysics, ETH Zurich, 8092 ETH Zurich, Switzerland |