Zero-Dimensional Plastic Phase Transition Iron-Based Compounds with High T c and Switchable SHG Responses

作者：Jing Wei, Qiulan Tan, Xixi Wang, Rong-Jie Hao, Yi-Xin Luo, Yun‐Zhi Tang, Nan Ma, Xiao‐Wei Fan, Yu‐Hui Tan · 发表于：Inorganic Chemistry · 年份：2025 · DOI：10.1021/acs.inorgchem.5c00049 · 被引用次数：4 · 研究领域：Advanced materials and composites、Metal and Thin Film Mechanics、Advanced ceramic materials synthesis

Organic–inorganic hybrid materials have garnered significant interest due to their unique combination of phase transition characteristics, substantial entropy changes, simple preparation methods, and structural flexibility, making them promising candidates for applications in sensor technologies and data storage systems. In the present research, two plastic organic–inorganic hybrid phase transition materials: [C 7 H 17 NF]FeCl 4 ( 1 ) and [C 7 H 17 NF]FeBr 4 ( 2 ) were successfully synthesized by the H/F substitution strategy. Significant step-like dielectric changes were observed during the reversible phase transitions of 1 (401 K) and 2 (406 K). At the same time, 1 and 2 have flexible switchable SHG effects and show the characteristics of band gap semiconductors with band gaps of 2.44 and 2.08 eV, respectively. This research presents an efficacious approach for devising the structures and modulating the properties of organic–inorganic hybrid materials.