1. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
2. Department of Organic Chemistry, Friedrich Alexander University Erlangen-Nuremberg, Nikolaus-Fiebiger Strasse 10, 91058 Erlangen, Germany.
3. Centre for Nanometer-Scale Science and Advanced Materials, NANOSAM, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland.
4. Department of Physics and Astronomy, The University of Tennessee, Knoxville, TN 37996, USA.
5. Espeem S.A.R.L. (espeem.com), 9 rue de Haut-Fournaux, L-4365 Esch-sur-Alzette, Luxembourg.
6. Institute of Chemistry, Organic Chemistry, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Strasse 2, 06120 Halle, Germany.