1. EGIS Pharmaceuticals PLC, H-1106 Budapest, Hungary, Fachbereich Chemie, Philipps-Universität Marburg, D-35032 Marburg/Lahn, Germany, Department of Physical and Theoretical Chemistry, Iaşi University “Al.I.Cuza”, RO − 700506 Iaşi, Romania, and Center for Complex and Nonlinear Systems and the Department of Chemical Physics, Budapest University of Technology and Economics, H-1521 Budapest, Hungary