1. Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog Weg 2, CH 8093Zurich, Switzerland
2. The Smart Materials Research Institute, Southern Federal University, Sladkova 178324, 344090Rostov-on-Don, Russia
3. Swiss Light Source, Paul Scherrer Institut, CH-5232Villigen, Switzerland
4. Department of Chemistry, Organic Chemistry, University of Cologne, Greinstraße 4, 50939 Cologne, Germany