Marco Frasconi, Takashi Kikuchi, Dennis Cao, Yilei Wu†‡, Wei-Guang Liu, Scott M. Dyar, Gokhan Barin, Amy A. Sarjeant, Charlotte L. Stern, Raanan Carmieli, Cheng Wang, Michael R. Wasielewski, William A. Goddard III, and J. Fraser Stoddart, J. Am. Chem. Soc., 2014, 136 (31), 11011–11026