Highly Selective Bifunctional Luminescent Sensor toward Nitrobenzene and Cu2+ Ion Based on Microporous Metal–Organic Frameworks: Synthesis, Structures, and Properties
| Autor: | Caiyun Shao, Lirong Yang, Xuefei Li, Ting Cai, Lele Yang, Chen Lian, Yuyang Han |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Coordination polymer Solvothermal synthesis Inorganic chemistry 02 engineering and technology Microporous material 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Nitrobenzene chemistry.chemical_compound Electron transfer Crystallography chemistry General Materials Science Metal-organic framework 0210 nano-technology Bifunctional |
| Zdroj: | ACS Applied Materials & Interfaces. 9:17208-17217 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.7b01758 |
| Popis: | Two metal–organic frameworks (MOFs), namely, [Ni(DTP)(H2O)]n (I) and [Cd2(DTP)2(bibp)1.5]n (II) (H2DPT = 4′-(4-(3,5-dicarboxylphenoxy) phenyl)-4,2′:6′,4″-terpyridine; bibp = 1,3-di(1H-imidazol-1-yl)propane), that present structural diversity were solvothermally prepared. Single-crystal X-ray diffraction analysis indicates that they consist of {NiN2O4} building units (for I) and {CdO4N2} and {CdO3N3} building units (for II), which are further linked by multicarboxylate H2DPT to construct microporous three-dimensional frameworks. The remarkable character of these frameworks is that coordination polymer II demonstrates highly selective and sensitive bifunctional luminescent sensor toward nitrobenzene and Cu2+ ion. The fluorescence quenching mechanism of II caused by nitrobenzene is ascribed to electron transfer from electron-rich (II) to electron-deficient nitrobenzene. The result was also evidenced by the density functional theory. Furthermore, anti-ferromagnetic as well as electrochemical characters of Ni-... |
| Databáze: | OpenAIRE |
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