Two-Dimensional Metal–Organic Framework with Wide Channels and Responsive Turn-On Fluorescence for the Chemical Sensing of Volatile Organic Compounds

We report a 2D layered metal–organic framework (MOF) with wide channels named NUS-1 and its activated analogue NUS-1a composed of Zn4O-like secondary building units and tetra­phenyl­ethene (TPE)-based ligand 4,4′-(2,2-di­phenyl­ethene-1,1-diyl)­di­benzoic acid. Due to its special structure, NUS-1a e...

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Published inJournal of the American Chemical Society Vol. 136; no. 20; pp. 7241 - 7244
Main Authors Zhang, Mei, Feng, Guangxue, Song, Zhegang, Zhou, Yu-Peng, Chao, Hsiu-Yi, Yuan, Daqiang, Tan, Tristan T. Y, Guo, Zhengang, Hu, Zhigang, Tang, Ben Zhong, Liu, Bin, Zhao, Dan
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 21.05.2014
Subjects
Adsorption
Fluorescence
ligands
Models, Molecular
Organometallic Compounds - chemistry
phase transition
sorption
Spectrometry, Fluorescence
Surface Properties
volatile organic compounds
Volatile Organic Compounds - chemistry
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Summary:We report a 2D layered metal–organic framework (MOF) with wide channels named NUS-1 and its activated analogue NUS-1a composed of Zn4O-like secondary building units and tetra­phenyl­ethene (TPE)-based ligand 4,4′-(2,2-di­phenyl­ethene-1,1-diyl)­di­benzoic acid. Due to its special structure, NUS-1a exhibits unprecedented gas sorption behavior, glass-transition-like phase transition under cryogenic conditions, and responsive turn-on fluorescence to various volatile organic compounds. Our approach using angular ligand containing partially fixed TPE units paves a way toward highly porous MOFs with fluorescence turn-on response that will find wide applications in chemical sensing.
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content type line 23
ISSN:0002-7863
1520-5126
1520-5126
DOI:10.1021/ja502643p