1. General Chemistry (ALGC), Faculty of Sciences, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium, Radiopharmaceutical Chemistry (BEFY), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium, and Institute of Inorganic Chemistry, Universty of Zürich, Winterthurestrasse 190, 8057 Zürich, Switzerland