1. Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
2. Bavarian Polymer Institute University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
3. Department of Chemistry University of Bayreuth Universitätsstraße 30 95447 Bayreuth Germany
4. Institute of Electronic Structure and Laser, F.O.R.T.H 70013 Heraklion Greece