A microporous Mg2+ MOF with cation exchange properties in a single-crystal-to-single-crystal fashion
| Autor: | Sofia Rapti, Theodore Lazarides, Giannis S. Papaefstathiou, Gerasimos S. Armatas, Zhen-Feng Huang, Constantine Kosmidis, Xin Wang, Antonios G. Hatzidimitriou, Euaggelia Skliri, Antigoni Douvali, Eleutheria Papazoi, S. Kaziannis, Manolis J. Manos |
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| Rok vydání: | 2017 |
| Předmět: |
Alkaline earth metal
010405 organic chemistry Chemistry Inorganic chemistry Microporous material Conductivity 010402 general chemistry Trigonal prismatic molecular geometry 01 natural sciences 0104 chemical sciences Ion Inorganic Chemistry Crystallography Luminescence Single crystal Coordination geometry |
| Zdroj: | Inorganic Chemistry Frontiers. 4:530-536 |
| ISSN: | 2052-1553 |
| Popis: | We report herein a new alkaline earth metal ion organic framework [Mg2(NH2BDC)2(HNO3)]·9H2O (AEMOF-7), which shows a 3-D microporous structure with several unusual features, such as the rare trigonal prismatic coordination geometry of one of the crystallographically unique Mg2+ centers and the existence of a bridging HNO3 ligand. The H+ ions of the HNO3 ligand are dissociable as demonstrated via proton conductivity measurements. AEMOF-7 displays relatively high selectivity for CO2vs. CH4 and negligible N2 uptake. Interestingly, this compound was found to be capable of single-crystal-to-single-crystal (SCSC) exchange of Mg2+ by Cu2+ ions, which was observed for the first time in a MOF material. AEMOF-7 is also luminescent and its photophysical properties were investigated via solid state UV-Vis, steady-state and time-resolved luminescence studies. |
| Databáze: | OpenAIRE |
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