1. Department
of Chemistry “G.
Ciamician”, University of Bologna, via Selmi 2, 40126 Bologna, Italy
2. Kekulé-Institut für
Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk Strasse 1, D-53121 Bonn, Germany
3. Interuniversity Center for the Chemical Conversion of Solar Energy (SolarChem), Bologna unit, via Selmi 2, 40126 Bologna, Italy