1. Theory Lab, Hasselt University, Agoralaan Building D, 3590 Diepenbeek, Belgium
2. Institut de Chimie de Strasbourg, University of Strasbourg/CNRS, UMR7177, rue Blaise Pascal, F-67008 Strasbourg, France
3. Chemical and Biological Systems Simulation Lab, Centre of New Technologies, University of Warsaw, Banacha 2C, 02-097 Warsaw, Poland