期刊
CRYSTAL GROWTH & DESIGN
卷 22, 期 12, 页码 7501-7507出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.2c01047
关键词
-
资金
- National Natural Science Foundation of China
- [21671086]
- [21761013]
This study reports a single-component organic enantiomeric phase transition material that exhibits high-temperature reversible phase transitions and excellent dielectric switching properties. The two enantiomers display similar physical and chemical properties, including high structural phase transition temperatures, step-like dielectric anomalies, and flexible dielectric switching properties.
Homochirality enables molecules to exhibit many specific physical properties, but single-component homochiral enantiomers with high-temperature reversible phase transitions and excellent dielectric switching properties are rarely reported. Here, we report a pair of single-component organic enantiomeric phase transition materials (R and S)-10,2-camphorsultams (1-R and 1-S). The two enantiomers display very similar physical and chemical properties, including structural phase transition temperatures up to 390 K, step -like dielectric anomalies from 2 to 8, and flexible dielectric switching properties. Homochiral (R and S)-10,2-camphorsultams (1-R and 1-S) crystallize at room temperature in polar point group 222, and the crystal structure and strong circular dichroism signal exhibit a clear mirror-image relationship. Furthermore, the intermolecular interactions of 1-R and 1-S are discussed in detail by Hirshfeld surface analysis. This work will promote the development of high-performance organic single-component reversible plastic phase transition materials.
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