Two-Dimensional Metal–Organic Framework with Wide Channels and Responsive Turn-On Fluorescence for the Chemical Sensing of Volatile Organic Compounds
National University of Singapore · Institute of Molecular Functional Materials · +6 more institutions
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.
Citation impact
- FWCI
- 28.01
- Percentile
- 100%
- References
- 50
Authors
12- MZMei ZhangCorresponding
National University of Singapore
- GFGuangxue Feng
National University of Singapore
- ZSZhegang Song
Institute of Molecular Functional Materials, University of Hong Kong, Hong Kong University of Science and Technology
- YZYu‐Peng Zhou
Sun Yat-sen University
- HCHsiu‐Yi Chao
Sun Yat-sen University
Topics & keywords
- Chemistry
- Fluorescence
- Sorption
- Turn (biochemistry)
- Metal-organic framework
- Ligand (biochemistry)
- Transition metal
- Porosity