Revealing Phosphorus Nitrides up to the Megabar Regime: Synthesis of α'-P₃ N_5, δ-P₃ N₅ and PN₂.

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-P₃ N₅ 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 com

SUBMITTER: Laniel D 

PROVIDER: S-EPMC9827839 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature