1. Molecular Inorganic Chemistry, Stratingh Institute for Chemistry, Faculty of Science and Engineering, Nijenborgh 4, 9747AG Groningen, The Netherlands
2. Department of Chemical Engineering, Faculty of Science and Engineering, Nijenborgh 4, 9747AG Groningen, The Netherlands
3. ARLANXEO Performance Elastomers, Innovation, P.O. Box 1130, 6160BC Geleen, The Netherlands