Reversible multistimuli-response fluorescent switch based on tetraphenylethene-spiropyran molecules.
Two tetraphenylethene (TPE)-functionalized spiropyran (SP) molecules with very similar structure were designed and synthesized. The two molecules exhibit aggregation-induced emission (AIE) properties, as well as multistimuli-responsive color-changing properties, such as photochromism and acidchromism. The investigation of their different photochromic and acidchromic characteristics and dual-response fluorescent switch during isomerization indicated that the different link position between TPE and SP will significantly affect the extended π-conjugated system, resulting in completely different photochromic and acidchromic properties.
College of Chemistry Jilin University, State Key Lab of Supramolecular Structure and Materials, Changchun, Jilin University, 130012 (P.R. China), Fax: (+86) 0431-8519-3421.
Qingkai
Q
Qi
Jingyu
J
Qian
Suqian
S
Ma
Bin
B
Xu
Sean Xiao-An
SX
Zhang
Wenjing
W
Tian
acidchromism; aggregation induced emission; fluorescent switch; isomerization; photochromism