1. Institute of Organic and Macromolecular ChemistryHeinrich‐Heine‐University Duesseldorf Universitaetsstraße 1 40225 Duesseldorf Germany
2. Institute of Molecular Enzyme TechnologyHeinrich‐Heine‐University Duesseldorf and Forschungszentrum Jülich GmbH Wilhelm Johnen Straße 52428 Jülich Germany