Fuel‐Driven Transient Crystallization of a Cucurbit[8]uril‐Based Host–Guest Complex
| Autor: | In-Chul Hwang, Kimoon Kim, Kangkyun Baek, Seoyeon Choi, Suman Kr Ghosh, Younghoon Kim, Rahul Dev Mukhopadhyay, Wooseup Hwang |
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| Rok vydání: | 2019 |
| Předmět: |
010405 organic chemistry
Decarboxylation Chemistry Supramolecular chemistry Structural integrity General Medicine General Chemistry 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences law.invention Chemical engineering law Scientific method Molecule Transient (oscillation) Crystallization |
| Zdroj: | Angewandte Chemie International Edition. 58:16850-16853 |
| ISSN: | 1521-3773 1433-7851 |
| Popis: | Transient self-assembling systems often suffer from accumulation of chemical wastes that interfere with the formation of pristine self-assembled products in subsequent cycles. Herein, we report the transient crystallization of a cucurbit[8]uril-based host-guest complex, preventing the accumulation of chemical wastes. Base-catalyzed thermal decarboxylation of trichloroacetic acid that chemically fuels the crystallization process dissolves the crystals, and produces volatile chemical wastes that are spontaneously removed from the solution. With such self-clearance process, no significant damping in the formation of the crystals was observed. The morphology and structural integrity of the crystals was also maintained in subsequent cycles. The concept may be further extended to obtain other temporally functional materials, quasicrystals, etc., based on stimuli-responsive guest molecules. |
| Databáze: | OpenAIRE |
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