1. NSF Center for the Chemistry of Molecularly Optimized Networks, Soft Matter Center, and Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
2. Institut Charles Sadron, Centre National de la Recherche Scientifique UPR 22, Université de Strasbourg, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
3. Departments of Physics, Chemistry, and Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
4. World Primer Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan