Homochirality enables molecules to exhibit many specific physical properties, but single-component homochiral enantiomers with hightemperature 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, steplike 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 highperformance organic single-component reversible plastic phase transition materials.

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The combination of chirality and phase transition materials has broad application prospects. Therefore, based on the quasi‐spherical theory and the thought strategy of introducing chirality, we have successfully synthesized a pair of chiral enantiomeric ligand R/S‐triethyl (2‐hydroxy‐propyl) ammonium iodide, which can be combined with tin hexachloride anion to obtain a pair of new organic‐inorganic hybrid enantiomeric high‐temperature plastic phase transition materials: R/S‐[CH3CH(OH)CH2N(CH2CH3)3]2SnCl6 (1‐R/1‐S), which has a high temperature phase transition of Tc=384 K, crystallized in P21 chiral space group at room temperature, and has obvious CD signal. In addition, compound 1‐R and 1‐S also has good low‐loss dielectric switch and broadband gap. This work is conducive to the research of chiral high‐temperature reversible plastic phase transition materials, and promotes the development of multi‐functional phase transition materials.