Wang, Q.-S.; Cong, H.; Yang, Y.-Z.; Zhang, J.-X.; Tao, Z.; Feng Xue, S.; Jiang Zhu, Q. Investigation on Host-Guest Interaction of Cucurbit[8]uril With 1,6-Bis(2-Amino-pyridyl)hexane Bromide. ajc 2011, 23, 4241-4242.