Luminescent Li-Based Metal-Organic Framework Tailored for the Selective Detection of Explosive Nitroaromatic Compounds: Direct Observation of Interaction Sites
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- Luminescent Li-Based Metal-Organic Framework Tailored for the Selective Detection of Explosive Nitroaromatic Compounds: Direct Observation of Interaction Sites
- Kim, Tae Kyung; Lee, Jae Hwa; Moon, Dohyun; Moon, Hoi Ri
- SORPTION PROPERTIES; HYDROGEN STORAGE; POLYMER
- Issue Date
- AMER CHEMICAL SOC
- INORGANIC CHEMISTRY, v.52, no.2, pp.589 - 595
- A luminescent lithium metal-organic framework (MOF) is constructed from the solvothermal reaction of Li+ and a well-designed organic ligand, bis(4-carboxyphenyl)-N-methylamine (H(2)CPMA). A Li-based MOF can detect an explosive aromatic compound containing nitro groups as an explosophore, by showing a dramatic color change with concurrent luminescence quenching in the solid state. The detection sites are proven directly through single-crystal-to-single-crystal transformations, which show strong interactions between the aromatic rings of the electron-rich CPMA(2-) molecules and the electron-deficient nitrobenzene.
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