High Pressure Synthesis of Hydride-fluoride Pyrochlore NaCaMg<sub>2</sub>F<sub>7−</sub><i><sub>x</sub></i>H<i><sub>x</sub></i>

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Author(s)

    • Arai Kazunari
    • Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
    • Kageyama Hiroshi
    • Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University|JST-CREST
    • Kobayashi Yoji
    • Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
    • Tang Ya
    • Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
    • Tsutsui Yusuke
    • Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
    • Sakamaki Daisuke
    • Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
    • Yamamoto Takafumi
    • Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
    • Fujii Kotaro
    • Department of Chemistry, School of Science, Tokyo Institute of Technology
    • Yashima Masatomo
    • Department of Chemistry, School of Science, Tokyo Institute of Technology
    • Seki Shu
    • Department of Molecular Engineering, Graduate School of Engineering, Kyoto University

Abstract

<p>The hydride-fluoride pyrochlore NaCaMg<sub>2</sub>F<sub>7−</sub><i><sub>x</sub></i>H<i><sub>x</sub></i> has been synthesized at high pressure (2 GPa) from binary fluorides and hydrides. Contrary to initial expectations, we did not find strong evidence of selective hydride substitution in special anionic sites. F-center formation under UV irradiation at room temperature was observed, demonstrating the potential lability of hydride and enabling further systematic studies.</p>

Journal

  • Chemistry Letters

    Chemistry Letters 47(7), 829-832, 2018

    The Chemical Society of Japan

Codes

  • NII Article ID (NAID)
    130007402828
  • Text Lang
    ENG
  • ISSN
    0366-7022
  • Data Source
    J-STAGE 
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