pH-Controlled intramolecular charge-transfer behavior in bistable [3]rotaxane.
Two [3]rotaxanes with an electron-rich pyrene moiety at the wheel and an electron-deficient naphthalenediimide (NDI) unit in the middle of the axle were prepared through "click chemistry", in which the intramolecular charge-transfer (ICT) process occurred between the pyrene moiety and the NDI unit, and the addition of acid and/or base can adjust the intensity of ICT.
Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People' Republic of China.
Qiao
Q
Jiang
Heng-Yi
HY
Zhang
Min
M
Han
Zhi-Jun
ZJ
Ding
Yu
Y
Liu