1. Department of Physical Chemistry and the Research Institute of Theoretical and Computational Chemistry (IQTCUB) of the University of Barcelona (UB), C/Martí i Franquès, 1, E-08028 Barcelona, Spain
2. Department of Chemistry, University of Lleida (UdL), Lleida, Spain
3. Department of Biochemistry and Molecular Biology and the Institute of Biomedicine (IBUB) of the University of Barcelona (UB) and IDIBAPS, Barcelona, Spain