Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

Revealing Phosphorus Nitrides up to the Megabar Regime : Synthesis of α′-P₃N₅, δ-P₃N₅ and PN₂

Title data

Laniel, Dominique ; Trybel, Florian ; Néri, Adrien ; Yin, Yuqing ; Aslandukov, Andrii ; Fedotenko, Timofey ; Khandarkhaeva, Saiana ; Tasnádi, Ferenc ; Chariton, Stella ; Giacobbe, Carlotta ; Bright, Eleanor Lawrence ; Hanfland, Michael ; Prakapenka, Vitali ; Schnick, Wolfgang ; Abrikosov, Igor A. ; Dubrovinsky, Leonid ; Dubrovinskaia, Natalia:
Revealing Phosphorus Nitrides up to the Megabar Regime : Synthesis of α′-P₃N₅, δ-P₃N₅ and PN₂.
In: Chemistry : a European Journal. Vol. 28 (2022) Issue 62 . - No. e202201998.
ISSN 1521-3765
DOI: doi:https://doi.org/10.1002/chem.202201998

Official URL: Volltext

Abstract in another language

Abstract Non-metal nitrides are an exciting field of chemistry, featuring a significant number of compounds that can possess outstanding material properties. These properties mainly rely on maximizing the number of strong covalent bonds, with crosslinked XN6 octahedra frameworks being particularly attractive. In this study, the phosphorus–nitrogen system was studied up to 137 GPa in laser-heated diamond anvil cells, and three previously unobserved phases were synthesized and characterized by single-crystal X-ray diffraction, Raman spectroscopy measurements and density functional theory calculations. δ-P3N5 and PN2 were found to form at 72 and 134 GPa, respectively, and both feature dense 3D networks of the so far elusive PN6 units. The two compounds are ultra-incompressible, having a bulk modulus of K0=322 GPa for δ-P3N5 and 339 GPa for PN2. Upon decompression below 7 GPa, δ-P3N5 undergoes a transformation into a novel α′-P3N5 solid, stable at ambient conditions, that has a unique structure type based on PN4 tetrahedra. The formation of α′-P3N5 underlines that a phase space otherwise inaccessible can be explored through materials formed under high pressure.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: high-pressure high-temperature synthesis; non-metal nitrides; PN6 octahedra; synchrotron single-crystal X-ray diffraction; ultra-incompressibility
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions > Professor Materials Physics and Technology at Extreme Conditions - Univ.-Prof. Dr. Natalia Doubrovinckaia
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 22 Nov 2022 10:17
Last Modified: 22 Nov 2022 10:17
URI: https://eref.uni-bayreuth.de/id/eprint/72855