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@ARTICLE{Liang:643595,
author = {Liang, Akun and ten Eikelder, Henricus R. A. and Ranieri,
Umbertoluca and Spender, James and Massani, Bernhard and
Fedotenko, Timofey and Glazyrin, Konstantin and Giordano,
Nico and Lawrence Bright, Eleanor and Wright, Jonathan and
Shi, Lan-Ting and Trybel, Florian and Laniel, Dominique},
title = {{H}igh-{P}ressure {S}ynthesis of the {F}irst
{T}hermodynamically {S}table {S}ilver {N}itride,
{A}g{N}$_5$},
journal = {JACS Au},
volume = {x},
issn = {2691-3704},
address = {Washington, DC},
publisher = {ACS Publications},
reportid = {PUBDB-2026-00306},
pages = {jacsau.5c01135},
year = {2025},
note = {cc-by-nc-ndonline first},
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 silver nitrides previously predicted. Moreover,
density functional theory (DFT)-based enthalpy convex hull
calculations demonstrate that this AgN5 compound is the only
thermodynamically stable Ag–N solid between 10 and 120 GPa
while also providing information on its phonon and electron
band structures, including its electronic band gap. Both DFT
calculations and SCXRD experimental data yield insights into
the stability pressure range of AgN5 upon decompression.
This study provides yet another example of the capability of
high pressure and high temperature to facilitate
unprecedented chemical reactions between elements often
assumed to be inert, in turn enabling the formation of novel
nitrogen-rich compounds.},
cin = {FS DOOR-User / FS-PETRA-D},
ddc = {540},
cid = {$I:(DE-H253)FS_DOOR-User-20241023$ /
I:(DE-H253)FS-PETRA-D-20210408},
pnm = {631 - Matter – Dynamics, Mechanisms and Control
(POF4-631) / 6G3 - PETRA III (DESY) (POF4-6G3)},
pid = {G:(DE-HGF)POF4-631 / G:(DE-HGF)POF4-6G3},
experiment = {EXP:(DE-H253)P-P02.2-20150101},
typ = {PUB:(DE-HGF)16},
doi = {10.1021/jacsau.5c01135},
url = {https://bib-pubdb1.desy.de/record/643595},
}