1. Computing Centre, Nicolaus Copernicus University, Plac Rapackiego 1, PL-87-100 Toruń, Poland
2. Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudzia̧dzka 5, PL-87-100 Toruń, Poland
3. Departmento de Química Física, Facultad de Química, Universidad de Vigo, E-36310 Vigo, Spain