An Ion‐Exchangeable MOF with Reversible Dehydration and Dynamic Structural Behavior (NH 4 ) 2 [Zn 2 (O 3 PCH 2 CH 2 COO) 2 ]⋅5 H 2 O (BIRM‐1)
| Autor: | Chao Zhao, Paul A. Anderson, Louise Male, Tzu‐Yu Chen, Joseph A. Barker, Ian J. Shannon |
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| Rok vydání: | 2019 |
| Předmět: |
Ion exchange
010405 organic chemistry Organic Chemistry Inorganic chemistry General Chemistry Crystal structure 010402 general chemistry 01 natural sciences Phosphonate Catalysis 0104 chemical sciences Metal chemistry.chemical_compound chemistry Zinc nitrate visual_art visual_art.visual_art_medium Metal-organic framework Porous medium Tetraethylammonium bromide |
| Zdroj: | Chemistry – A European Journal. 25:13865-13868 |
| ISSN: | 1521-3765 0947-6539 |
| DOI: | 10.1002/chem.201903230 |
| Popis: | (NH4 )2 [Zn2 (O3 PCH2 CH2 COO)2 ]⋅5 H2 O (BIRM-1) is a new metal phosphonate material, synthesized through a simple hydrothermal reaction between zinc nitrate and 3-phosphonopropionic acid, using urea and tetraethylammonium bromide as the reaction medium. In common with other metal-organic framework materials, BIRM-1 has a large three-dimensional porous structure providing potential access to a high internal surface area. Unlike most others, it has the advantage of containing ammonium cations within the pores and has the ability to undergo cation exchange. Additionally, BIRM-1 also exhibits a reversible dehydration behavior involving an amorphization-recrystallization cycle. The ability to undergo ion exchange and dynamic structural behavior are of interest in their own right, but also increase the range of potential applications for this material. Here the crystal structure of this new metal phosphonate and its ion exchange behavior with K+ as an exemplar are studied in detail, and its unusual structure-reviving property reported. |
| Databáze: | OpenAIRE |
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