Chiral Recognition and Separation by Chirality‐Enriched Metal–Organic Frameworks
| Autor: | Teng Ben, Shilun Qiu, Saikat Das, Shixian Xu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Quantitative Biology::Biomolecules Materials science Dopant High Energy Physics::Lattice High Energy Physics::Phenomenology Physics::Optics General Medicine 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Combinatorial chemistry Catalysis 0104 chemical sciences Membrane chemistry Metal-organic framework Enantiomer 0210 nano-technology Chirality (chemistry) Chiral induction |
| Zdroj: | Angewandte Chemie International Edition. 57:8629-8633 |
| ISSN: | 1521-3773 1433-7851 |
| Popis: | Endowed with chiral channels and pores, chiral metal-organic frameworks (MOFs) are highly useful; however, their synthesis remains a challenge given that most chiral building blocks are expensive. Although MOFs with induced chirality have been reported to avoid this shortcoming, no study providing evidence for the ee value of such MOFs has yet been reported. We herein describe the first study on the efficiency of chiral induction in MOFs using inexpensive achiral building blocks and fully recoverable chiral dopants to control the handedness of racemic MOFs. This method yielded chirality-enriched MOFs with accessible pores. The ability of the materials to form host-guest complexes was probed with enantiomers of varying size and coordination and in solvents with varying polarity. Furthermore, mixed-matrix membranes (MMMs) composed of chirality-enriched MOF particles dispersed in a polymer matrix demonstrated a new route for chiral separation. |
| Databáze: | OpenAIRE |
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