1. Department of Physical ChemistryFaculty of Chemistry, University of Lodz Pomorska Str. 163/165 90-236 Lodz Poland
2. Institute of Theoretical ChemistryUlm University D-89069 Ulm Germany
3. Instituto de Física Enrique Gaviola (IFEG-CONICET)Facultad de Matemática, Astronomía y Física, FaMAF-UNC Cordoba Argentina