1. Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom; Laboratory of Medicinal Research, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroederstraat 10, B-3000 Leuven, Belgium; Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, Jilin University, No. 10 of Qianwei Road, Changchun 130023, P. R. China; and Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven,...