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Pentiptycene-Based Luminescent Cu (II) MOF Exhibiting Selective Gas Adsorption and Unprecedentedly High-Sensitivity Detection of Nitroaromatic Compounds (NACs)

机译:基于戊二烯的发光铜(II)MOF表现出选择性气体吸附和硝基芳族化合物(NAC)的超高灵敏度检测

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摘要

The assembly of a fluorescent pentiptycene-based ligand with copper ion resulted in the formation of a 3D porous metal-organic framework (>UPC-21) based on well-known paddlewheel SBUs. >UPC-21 exhibits selective adsorption of CO2 over CH4 and N2 at 273 K and 295 K, C2H2 over CH4 at 273 K. The most significant performance of >UPC-21 is its highly efficient detection of NACs such as 4-NP, 1,4-DNB, NB, and 1,3-DNB with the calculated quenching constants, Ksv, being 3.097 × 106, 1.406 × 106, 4.420 × 105, and 1.498 × 105 M−1 for 4-NP, 1,4-DNB, NB, 1,3-DNB, respectively, which keeps a record on the fluorescence detection of NACs. This is the first porous Cu(II) MOF that exhibits fluorescent detection of NACs with high sensitivities.
机译:荧光五萜烯基配体与铜离子的组装导致形成基于众所周知的桨轮SBU的3D多孔金属-有机骨架(> UPC-21 )。 > UPC-21 在273 K和295 K时对CH4和N2有选择性的吸附,在273 K时CH2H2对CH4有选择性的吸附。> UPC-21 的最显着性能是计算出的淬灭常数Ksv为3.0974-×10 6 ,1.406×10 <的NAC,例如4-NP,1,4-DNB,NB和1,3-DNB的高效检测sup> 6 ,4.420×10 5 和1.498×10 5 M -1 对于4-NP,1,4 -DNB,NB,1,3-DNB,分别记录了NAC的荧光检测。这是第一个以高灵敏度对NAC进行荧光检测的多孔Cu(II)MOF。

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