1. Laboratory for Physical Organic Chemistry, Division of Organic Chemistry and Biochemistry, Rudjer Bošković Institute, POB 108, HR-10002 Zagreb, Croatia, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic, Institute for Theoretical Chemistry, University of Vienna, Währingerstrasse 17, A-1090 Vienna, Austria, and Quantum Organic Chemistry Group, Division of Organic Chemistry and Biochemistry, Rudjer Bošković...