A supramolecular switch based on three binding states of a pyrene derivate: a reversible three-state switch with only two stimuli

作者：Chen Hao; Yang Hui; Xu Wenchao; Tan Yebang^*

来源：RSC Advances, 2013, 3(32): 13311-13317.

DOI：10.1039/c3ra41631c

A fluorescent molecule, N-methyl-pyrenemethylammonium (MPA(+)), can be encapsulated inside cucurbit[8]uril's (CB[8]) cavity to form a binary host-guest complex. And the binary complex can further binds methyl viologen (MV2+), yielding a ternary complex. With only two chemical stimuli, cucurbit[7]uril (CB[7]) and amantadine hydrochloride (AD), the three binding states of MPA(+), unbound MPA(+), the binary complex and the ternary complex, can transform reversibly and exert three different fluorescence outputs.

• 出版日期2013
• 单位山东大学