1. Inorganic Chemistry II University of Bayreuth Universitätsstraße 30 95440 Bayreuth Germany
2. Theoretical Physics IV University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
3. Institute of Physics, Bayreuth Institute of Macromolecule Research (BIMF) University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany