High Pressure Synthesis of Marcasite-Type Rhodium Pernitride

High Pressure Synthesis of Marcasite-Type Rhodium Pernitride

Marcasite-type rhodium nitride was successfully synthesized in a direct chemical reaction between a rhodium metal and molecular nitrogen at 43.2 GPa using a laser-heated diamond-anvil cell. This material shows a low zero-pressure bulk modulus of K 0 = 235(13) GPa, which is much lower than those of o...

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Veröffentlicht in:Inorganic chemistry 2014-01, Vol.53 (2), p.697-699
Hauptverfasser: Niwa, Ken, Dzivenko, Dmytro, Suzuki, Kentaro, Riedel, Ralf, Troyan, Ivan, Eremets, Mikhail, Hasegawa, Masashi
Format: Artikel
Sprache:eng
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Zusammenfassung:Marcasite-type rhodium nitride was successfully synthesized in a direct chemical reaction between a rhodium metal and molecular nitrogen at 43.2 GPa using a laser-heated diamond-anvil cell. This material shows a low zero-pressure bulk modulus of K 0 = 235(13) GPa, which is much lower than those of other platinum group nitrides. This finding is due to the weaker bonding interaction between metal atoms and quasi-molecular dinitrogen units in the marcasite-type structure, as proposed by theoretical studies.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic402885k