A stable compound of helium and sodium at high pressure.

  title={A stable compound of helium and sodium at high pressure.},
  author={Xiao Dong and A. Oganov and A. Goncharov and E. Stavrou and S. Lobanov and G. Saleh and Guang-Rui Qian and Qiang Zhu and C. Gatti and V. Deringer and R. Dronskowski and X. Zhou and V. Prakapenka and Z. Kon{\^o}pkov{\'a} and I. Popov and A. Boldyrev and H. Wang},
  journal={Nature chemistry},
  volume={9 5},
  • Xiao Dong, A. Oganov, +14 authors H. Wang
  • Published 2017
  • Chemistry, Physics, Medicine
  • Nature chemistry
  • Helium is generally understood to be chemically inert and this is due to its extremely stable closed-shell electronic configuration, zero electron affinity and an unsurpassed ionization potential. It is not known to form thermodynamically stable compounds, except a few inclusion compounds. Here, using the ab initio evolutionary algorithm USPEX and subsequent high-pressure synthesis in a diamond anvil cell, we report the discovery of a thermodynamically stable compound of helium and sodium… CONTINUE READING
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