Two-Dimensional Metal–Organic Framework with Wide Channels and Responsive Turn-On Fluorescence for the Chemical Sensing of Volatile Organic Compounds
Journal of the American Chemical Society2014Vol. 136(20), pp. 7241–7244
Citations Over TimeTop 1% of 2014 papers
Mei Zhang, Guangxue Feng, Zhegang Song, Yu‐Peng Zhou, Hsiu‐Yi Chao, Daqiang Yuan, Tristan Tsai Yuan Tan, Zhengang Guo, Zhigang Hu, Ben Zhong Tang, Bin Liu, Dan Zhao
Abstract
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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