Tetraphenylethene-Based Luminescent Metal-Organic Framework for Effective Differentiation of cis/trans Isomers

Yuan Xu; Chen-Lei Tao; Maoxing Yu; Yi Xiong; Ya-Ni Ouyang; Xun-Gao Liu; Zujin Zhao

doi:10.1021/acsami.0c10702

Tetraphenylethene-Based Luminescent Metal-Organic Framework for Effective Differentiation of cis/trans Isomers

ACS Appl Mater Interfaces. 2020 Aug 5;12(31):35266-35272. doi: 10.1021/acsami.0c10702. Epub 2020 Jul 23.

Authors

Yuan Xu¹, Chen-Lei Tao¹, Maoxing Yu², Yi Xiong², Ya-Ni Ouyang¹, Xun-Gao Liu¹, Zujin Zhao²

Affiliations

¹ College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China.
² State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China.

PMID: 32640789
DOI: 10.1021/acsami.0c10702

Abstract

Luminescent metal-organic frameworks (LMOFs) that can effectively differentiate cis/trans isomers are rarely reported. Herein, we report a novel non-interpenetrated pillared-layered LMOF [Zn(HIPA)(BPyTPE)] (1) (BPyTPE = (E)-1,2-diphenyl-1,2-bis(4-(pyridin-4-yl)phenyl)ethene; HIPA = (5-hydroxyisophthalic acid)) with a high fluorescence quantum yield of 90.1%. The activated 1 exhibits high thermal stability and strong fluorescence in a methanol suspension. The fluorescence of activated 1 can be much more efficiently quenched by trans-dimethyl-2-butenedioate and trans-2-butene-1,4-diol than cis-dimethyl-2-butenedioate and cis-2-butene-1,4-diol, which enables it to differentiate these cis/trans isomers. This interesting LMOF could be a new type of fluorescence sensor to effectively detect cis/trans isomers.

Keywords: cis/trans differentiation; luminescent metal−organic framework; sensors; tetraphenylethene.