Reversible Phase Transition with Ultralarge Dielectric Relaxation Behaviors in Succinimide Lithium(I) Hybrids
| Autor: | Yu-Hui Tan, He-Rui Wen, Shao-Peng Chen, Yun-Zhi Tang, Hai-Tao Zhou, Chang-Feng Wang, Bin Wang, Chang-Shan Yang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Permittivity
Phase transition Chemistry chemistry.chemical_element 02 engineering and technology Dielectric 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Succinimide Chemical physics Phase (matter) Relaxation (physics) Lithium Physical and Theoretical Chemistry 0210 nano-technology Single crystal |
| Zdroj: | Inorganic Chemistry. 57:1196-1202 |
| ISSN: | 1520-510X 0020-1669 |
| DOI: | 10.1021/acs.inorgchem.7b02625 |
| Popis: | Dielectric relaxations have widely applied on high permittivity capacitors, dielectric switches, ferroelectrics, pyroelectrics, and electrical insulating materials. However, few investigations of large dielectric relaxation behaviors on organic–inorganic hybrid materials have been documented before. Here we present a novel two-dimensional succinimide lithium(I) hybrid compound, [Li(PDD)2ClO4]n, 1, (PDD = 2,5-pyrrolidinedione = succinimide) which shows reversible phase transition behavior in the vicinity of 228 K accompanied by an unusual symmetry breaking from I41/amd to C2/c. X-ray single crystal diffractions analysis indicates the twist motion of pyrrolidine heterocycles, and order–disorder motion of ClO4– anions triggered the reversible phase transition. By means of an intuitive crystallographic model (rattling ion model), we further illustrated the mechanism of the interesting reversible phase transition. Particularly, 1 shows ultralarge dielectric relaxation behavior in the vicinity of the phase tran... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|