Energy transfer switching in a bistable molecular machine.
[reaction: see text] A novel [2]rotaxane, containing pyrene and perylene bisimide as both stoppers and photoactive units, has been prepared. The shuttling of the protonated macrocycle switched the energy transfer (EN) from a pyrene moiety to a perylene moiety, which resulted in changes of fluorescence of the perylene moiety.
Li
Yongjun
Y
CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, and Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing.
Li
Hao
H
Li
Yuliang
Y
Liu
Huibiao
H
Wang
Shu
S
He
Xiaorong
X
Wang
Ning
N
Zhu
Daoben
D