Discovery of the last remaining binary platinum-group pernitride RuN₂

Ken Niwa; Kentaro Suzuki; Shunsuke Muto; Kazuyoshi Tatsumi; Kazuo Soda; Takumi Kikegawa; Masashi Hasegawa

doi:10.1002/chem.201404165

Discovery of the last remaining binary platinum-group pernitride RuN₂

Chemistry. 2014 Oct 20;20(43):13885-8. doi: 10.1002/chem.201404165. Epub 2014 Sep 9.

Authors

Ken Niwa¹, Kentaro Suzuki, Shunsuke Muto, Kazuyoshi Tatsumi, Kazuo Soda, Takumi Kikegawa, Masashi Hasegawa

Affiliation

¹ Department of Crystalline Materials Science, Nagoya University, Furo-cho, Chikusa-ku, 464-8603 Nagoya (Japan), Fax: (+81) 52-789-3252. niwa@numse.nagoya-u.ac.jp.

PMID: 25205266
DOI: 10.1002/chem.201404165

Abstract

The last remaining marcasite-type RuN2 was successfully synthesized by direct chemical reaction between ruthenium and molecular nitrogen above the pressure of 32 GPa. For the first time, we found that Ru 4d is weakly hybridized with N 2p in the structure by using transmission electron microscopy equipped with electron-energy-loss spectroscopy. Our finding give important knowledge about the platinum-group pernitride with respect to the chemical bonding between platinum-group element and nitrogen.

Keywords: density functional calculations; high-pressure synthesis; laser-heated diamond-anvil cell; nitrides; ruthenium.