Highly Coordinated Iron and Cobalt Nitrides Synthesized at High Pressures and High Temperatures

Inorganic Chemistry
Ken NiwaMasashi Hasegawa

Abstract

Highly coordinated iron and cobalt nitrides were successfully synthesized via direct chemical reaction between a transition metal and molecular nitrogen at pressures above approximately 30 GPa using a laser-heated diamond anvil cell. The synthesized novel transition metal nitrides were found to crystallize into the NiAs-type or marcasite-type structure. NiAs-type FeN could be quenched at ambient pressure, although it was gradually converted to the ZnS-type structure after the pressure was released. On the other hand, CoN was recovered with ZnS-type structure through a phase transition from NiAs-type structure at approximately a few gigapascals during decompression. Marcasite-type CoN2was also synthesized at pressures above approximately 30 GPa. High-pressure in situ X-ray diffraction measurement showed that the zero-pressure bulk modulus of marcasite-type CoN2is 216(18) GPa, which is comparable to that of RhN2. This indicates that the interatomic distance of the N-N dimer in marcasite-type CoN2is short because of weak orbital interaction between cobalt and nitrogen atoms, as in RhN2. Surprisingly, a first-principles electronic band calculation suggests that the NiAs-type FeN and CoN and marcasite-type CoN2exhibit metallic chara...Continue Reading

References

Jul 1, 1985·Physical Review. B, Condensed Matter·R KumarR Wappling
Apr 5, 1963·Science·R W WYCKOFFP MATTER
Apr 27, 2004·Nature Materials·Eugene GregoryanzRussell J Hemley
Mar 4, 2006·Science·Jonathan C CrowhurstA J Nelson
May 23, 2006·Physical Review Letters·Andrea F YoungHo-kwang Mao
Dec 22, 2006·Angewandte Chemie·Rong YuLutgard C De Jonghe
Feb 4, 2011·Chemistry : a European Journal·Michael Wessel, Richard Dronskowski
Oct 1, 2013·Inorganic Chemistry·Akira MiuraNobuhiro Kumada
Jan 8, 2014·Inorganic Chemistry·Ken NiwaMasashi Hasegawa
Sep 11, 2014·Chemistry : a European Journal·Ken NiwaMasashi Hasegawa
Dec 24, 2016·Journal of Synchrotron Radiation·Nobuhisa WatanabeMasao Tabuchi

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Citations

Nov 15, 2018·Physical Chemistry Chemical Physics : PCCP·Wandong XingRong Yu
Feb 19, 2019·Physical Chemistry Chemical Physics : PCCP·Alexey KartsevAlexander G Kvashnin

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