Zero‐Dimensional Sn‐Based Enantiomeric Phase‐Transition Materials with High‐Tc and Dielectric Switching

• Published in: Chemistry : a European journal Vol. 29; no. 57; p. e202301499
• Main Authors: Huang, Yan‐Le, Ying, Ting‐Ting, Zhao, Yi‐Ran, Tang, Yun‐Zhi, Tan, Yu‐Hui, Li, Qiao‐Lin, Liu, Wei‐Fei, Wan, Ming‐Yang, Wang, Fang‐Xin
• Format: Journal Article
• Language: English
• Published: WEINHEIM Wiley 13.10.2023; Wiley Subscription Services, Inc
• Subjects: Ammonium; Broadband; Chemistry; Chemistry, Multidisciplinary; Chirality; High temperature; Iodides; Phase transitions; Physical Sciences; Room temperature; Science & Technology; Tin; organic-inorganic hybrids; high-T-c phase transition; HALIDE; semiconductors; enantiomeric; SYMMETRY-BREAKING; Enantiomeric High-Tc Phase Transition Organic-Inorganic Hybrids Semiconductor
• ISSN: 0947-6539; 1521-3765; 1521-3765
• DOI: 10.1002/chem.202301499

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 ligands ( R / S )‐triethyl‐(2‐hydroxypropyl)ammonium iodide, which can be combined with a tin hexachloride anion to obtain a pair of new organic–inorganic hybrid enantiomeric high‐temperature plastic phase‐transition materials: ( R / S )‐[CH 3 CH(OH)CH 2 N(CH 2 CH 3 ) 3 ] 2 SnCl 6 ( 1‐R / 1‐S ), which have a high temperature phase transition of T c =384 K, crystallize in the P 2 1 chiral space group at room temperature, and have obvious CD signals. In addition, compounds 1‐R and 1‐S have a good low‐loss dielectric switch and broadband gap. This work is conducive to the research into chiral high‐temperature reversible plastic phase‐transition materials, and promotes the development of multi‐functional phase‐transition materials.