A little bit of lithium does a lot for hydrogen

Eva Zurek, Roald Hoffmann, N. W. Ashcroft, Artem R. Oganov, Andriy O. Lyakhov

Research output: Contribution to journalArticlepeer-review

210 Citations (Scopus)


From detailed assessments of electronic structure, we find that a combination of significantly quantal elements, six of seven atoms being hydrogen, becomes a stable metal at a pressure approximately 1/4 of that required to metalize pure hydrogen itself. The system, LiH6 (and other LiHn), may well have extensions beyond the constituent lithium. These hypothetical materials demonstrate that nontraditional stoichiometries can considerably expand the view of chemical combination under moderate pressure.

Original languageEnglish
Pages (from-to)17640-17643
Number of pages4
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number42
Publication statusPublished - 20 Oct 2009
Externally publishedYes


  • High pressure
  • Hydrogen metallization
  • Lithium chemistry


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