Lead-free antimony-based halides bis(thiomorpholine) pentachloroantimonate(III) monohydrate
| Autor: | Hong-Qiang Gao, Lin-Sui Li, Yun-Xuan Wu, Wen-Juan Wei, Yu-Hui Tan |
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| Rok vydání: | 2021 |
| Předmět: |
010405 organic chemistry
Organic Chemistry Halide chemistry.chemical_element 010402 general chemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry Bismuth Inorganic Chemistry chemistry.chemical_compound Crystallography Thiomorpholine Antimony chemistry Light emission Hybrid material Hydrate Spectroscopy Perovskite (structure) |
| Zdroj: | Journal of Molecular Structure. 1227:129681 |
| ISSN: | 0022-2860 |
| DOI: | 10.1016/j.molstruc.2020.129681 |
| Popis: | We have successfully synthesized a new antimony-based halide hydrate, bis(thiomorpholine) pentachloroantimonate(III) monohydrate (C4NSH10)2[SbCl5]·H2O (1, C4NSH10+ is thiomorpholine cation), which crystals in a centrosymmetric space group of Pbca. 1 features the R2MX5-type perovskite architecture and undergoes a first-order structural phase transition (PT) at 406.3 K, accompanying with prominent dielectric responses. The photoluminescence spectra reveal that 1 shows a broadband light emission and a long lifetime (2.77 μs). In addition, the DFT calculation exhibits the organic thiomorpholine cation has a contribution to electronic band structures of 1, which is distinct with other halide bismuth (Bi) and antimony (Sb)-based hybrid perovskites. This finding opens up a potential pathway to construct new lead-free hybrid materials for application of the optoelectronics. |
| Databáze: | OpenAIRE |
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