High-Pressure Synthesis of the First Thermodynamically Stable Silver Nitride, AgN₅.

ABSTRACT: Being a noble metal, silver is known for its chemical inertness. Molecular nitrogen, due to its extremely strong covalent triple bond, is also typically considered unreactive. It is thus unsurprising that no credible report on the formation of a thermodynamically stable silver and nitrogen compound exists. In this study, we report the synthesis of silver pentazolate (AgN₅), achieved through the direct reaction of elemental silver with molecular nitrogen at a pressure of 118(3) GPa and a temperature of 2000(200) K. The crystal structure of AgN₅ was determined from synchrotron single-crystal X-ray diffraction (SCXRD) data, revealing it to be comprised of cyclo-N₅ ^- anions. Remarkably, this solid's structure does not correspond to any of the

SUBMITTER: Liang A 

PROVIDER: S-EPMC12848735 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature