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| Two Homologous Metal-Organic Frameworks Based on Zn(Ⅱ) and Cd(Ⅱ): Luminescent Sensors for Nitro Aromatic Compounds in Solution and Vapor Medium |
| Author Name | Affiliation | E-mail | | LI Jiang | School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China | lijiang@chd.edu.cn | | HAN Sen | School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China | | | CHEN Tuan-Jie | CCCC Fisrt Highway Consultans Co., Ltd., Xi'an 710062, China | | | GOU Zhao-Xi | School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China | | | ZHANG Qi | School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China | | | NIE Xiao-Sahuang | School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China | | | CAO Hai-Ru | School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China | |
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| Abstract: Two homologous luminescent metal-organic frameworks (LMOFs),[Cd2(DDCPB)(DMF)2(H2O)]n (CHD-1) and {[Zn2(DDCPB)(DMA)2]·DMA}n (CHD-2) (H4DDCPB=1,1':3',1″-terphenyl-3,3″,5,5″-tetracarboxylic acid), were constructed to explore sensing mechanisms for series of nitro aromatic compounds (NACs). Among various kinds of organic compounds, both CHD-1 and CHD-2 only respond to a series of nitro aromatic compounds through luminescence quenching with distinct analytes concentration in vapor and liquid phase. Quantitative experiments in solution were conducted to confirm the higher dynamic quenching efficiency and to calculate the quenching constants. Meanwhile, both CHD-1 and CHD-2 show high selectivity and excellent sensitivity for NACs with low detection limits in solution. Moreover, the film based on the MOFs sample identifies high sensitivity towards nitrobenzene (NB) and 2-nitrotoluene (o-MNT) vapor. In addition, the relationship between the sensing efficiency and the inherent structure of compounds the sensing mechanisms were discussed in detail. |
| Keywords: metal-organic frameworks luminescent sensing nitro aromatic compounds |
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| LI Jiang,HAN Sen,CHEN Tuan-Jie,GOU Zhao-Xi,ZHANG Qi,NIE Xiao-Sahuang,CAO Hai-Ru.Two Homologous Metal-Organic Frameworks Based on Zn(Ⅱ) and Cd(Ⅱ): Luminescent Sensors for Nitro Aromatic Compounds in Solution and Vapor Medium[J].Chinese Journal of Inorganic Chemistry,2019,35(10):1843-1852. |
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