1. Adolphe Merkle Institute University of Fribourg Chemin des Verdiers 4 Fribourg 1700 Switzerland
2. Department of High Energy Density Helmholtz‐Zentrum Dresden‐Rossendorf Bautzner Landstraße 400 Dresden 01328 Germany
3. Department of Chemistry University of Fribourg Chemin du Musée 9 Fribourg 1700 Switzerland