High-Pressure Synthesis ofγ-P3N5 at 11 GPa and 1500 °C in a Multianvil Assembly: A Binary Phosphorus(V) Nitride with a Three-Dimensional Network Structure from PN4 Tetrahedra and Tetragonal PN5 Pyramids

Abstract

Extreme reaction conditions lead to the synthesis of γ-P3N5. Its crystal structure (see picture), unlike that of the normal pressure modification α-P3N5, is not exclusively built from PN4 tetrahedra, but from both PN4 tetrahedra (blue) and tetragonal PN5 pyramids (red). A tetragonal PN5 pyramid structure element has not been observed previously.