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Journal Article

High Pressure Synthesis of Marcasite-Type Rhodium Pernitride

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Troyan,  Ivan
Biogeochemistry, Max Planck Institute for Chemistry, Max Planck Society;

/persons/resource/persons100925

Eremets,  Mikhail
Biogeochemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Citation

Niwa, K., Dzivenko, D., Suzuki, K., Riedel, R., Troyan, I., Eremets, M., et al. (2014). High Pressure Synthesis of Marcasite-Type Rhodium Pernitride. Inorganic Chemistry, 53(2), 697-699. doi:10.1021/ic402885k.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0024-B267-5
Abstract
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.