Decocq Victoria, Wang Fei
Department of Chemistry and Biochemistry, Missouri State University, Springfield, Missouri 65897, United States.
Inorg Chem. 2025 Jul 7;64(26):13163-13169. doi: 10.1021/acs.inorgchem.5c01400. Epub 2025 Jun 23.
Al substitution leads to kaleidoscopic vacancy-bearing crystal structures in the rhenium silicides, ReAlSi□ (□ indicates Si/Al vacancies), including two incommensurate structures newly found and successfully solved with (3 + 1)-dimensional superspace groups in this work. The similarity and difference among these structures, especially the subtle difference in the ordered distribution of vacancies, are compared and discussed in detail. With synthetic, crystallographic, and computational investigations, we gained a comprehensive understanding of the composition-structure relationship in these compounds, especially the ordered distribution of Si/Al vacancies.
铝的取代导致铼硅化物ReAlSi□（□表示硅/铝空位）中出现具有千变万化的含空位晶体结构，包括在本工作中利用（3 + 1）维超空间群新发现并成功解析的两种非公度结构。详细比较并讨论了这些结构之间的异同，特别是空位有序分布的细微差异。通过合成、晶体学和计算研究，我们全面了解了这些化合物中的组成 - 结构关系，尤其是硅/铝空位的有序分布。
