Unexpected stable stoichiometries of sodium chlorides.

@article{Zhang2013UnexpectedSS,
  title={Unexpected stable stoichiometries of sodium chlorides.},
  author={Weiwei Zhang and Artem R. Oganov and Alexander F. Goncharov and Qiang Zhu and Salah Eddine Boulfelfel and Andriy O. Lyakhov and Elissaios Stavrou and Maddury Somayazulu and Vitali B Prakapenka and Zuzana Kon{\^o}pkov{\'a}},
  journal={Science},
  year={2013},
  volume={342 6165},
  pages={
          1502-5
        }
}
  • Weiwei Zhang, Artem R. Oganov, +7 authors Zuzana Konôpková
  • Published in Science 2013
  • Physics, Chemistry, Medicine
  • Sodium chloride (NaCl), or rocksalt, is well characterized at ambient pressure. As a result of the large electronegativity difference between Na and Cl atoms, it has highly ionic chemical bonding (with 1:1 stoichiometry dictated by charge balance) and B1-type crystal structure. By combining theoretical predictions and diamond anvil cell experiments, we found that new materials with different stoichiometries emerge at high pressures. Compounds such as Na3Cl, Na2Cl, Na3Cl2, NaCl3, and NaCl7 are… CONTINUE READING

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