at Google ScholarTitle data
Glazyrin, Konstantin ; Aslandukov, Andrii ; Aslandukova, Alena ; Fedotenko, Timofey ; Khandarkhaeva, Saiana ; Laniel, Dominique ; Bykov, Maxim ; Dubrovinsky, Leonid:
High-pressure reactions between the pnictogens : the rediscovery of BiN.
In: Frontiers in Chemistry.
Vol. 11
(2023)
.
- 1257942.
ISSN 2296-2646
DOI: https://doi.org/10.3389/fchem.2023.1257942
Abstract in another language
We explore chemical reactions within pnictogens with an example of bismuth and nitrogen under extreme conditions. Understanding chemical reactions between Bi and N, elements representing the first and the last stable elements of the nitrogen group, and the physical properties of their compounds under ambient and high pressure is far from being complete. Here, we report the high-pressure high-temperature synthesis of orthorhombic Pbcn BiN (S.G. #60) from Bi and N<sub>2</sub> precursors at pressures above 40 GPa. Using synchrotron single-crystal X-ray diffraction on the polycrystalline sample, we solved and refined the compound’s structure and studied its behavior and compressibility on decompression to ambient pressure. We confirm the stability of Pbcn BiN to pressures as low as 12.5(4) GPa. Below that pressure value, a group–subgroup phase transformation occurs, resulting in the formation of a non-centrosymmetric BiN solid with a space group Pca2<sub>1</sub> (S.G. #29). We use ab initio calculations to characterize the polymorphs of BiN. They also provide support and explanation for our experimental observations, in particular those corresponding to peculiar Bi–N bond evolution under pressure, resulting in a change in the coordination numbers of Bi and N as a function of pressure within the explored stability field of Pbcn BiN.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Institutions of the University: | Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science > 530 Physics |
| Date Deposited: | 13 Feb 2024 09:46 |
| Last Modified: | 13 Feb 2024 09:46 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/88546 |