1. Department of Theoretical Chemistry Amsterdam Institute for Molecular and Life Sciences (AIMMS) Amsterdam Center for Multiscale Modeling (ACMM) Vrije Universiteit Amsterdam De Boelelaan 1083 1081 HV Amsterdam The Netherlands
2. Department of Chemistry Institute of Natural Sciences Federal University of Lavras CEP 37200-900 Lavras MG Brazil
3. Center for Basic and Applied Research University Hradec Kralove Hradec Kralove Czech Republic
4. Institute for Molecules and Materials Radboud University Nijmegen Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
5. Department of Chemical Sciences University of Johannesburg Auckland Park Johannesburg 2006 South Africa