1. Faculty of Chemistry, Institute of Inorganic Chemistry, University of Vienna, Währinger Str. 42, 1090 Vienna, Austria
2. Faculty of Chemistry, Institute of Analytical Chemistry, University of Vienna, Währinger Str. 38, 1090 Vienna, Austria
3. Institute for Oncology and Radiology of Serbia, Pasterova 14, 11000 Belgrade, Serbia
4. Faculty of Chemistry, Institute of Theoretical Chemistry, University of Vienna, Währinger Str. 17, 1090 Vienna, Austria http://www.theochem.univie.ac.at
5. Laboratoire National des Champs Magnetiques Intenses‐CNRS, 25 Avenue des Martyrs, 38042 Grenoble Cedex 9, France