Shock synthesis of lanthanum-III-pernitride

O. Tschauner*, S. N. Luo, Y. J. Chen, A. Mcdowell, J. Knight, S. M. Clark

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Lanthanum-III-pernitride is unique amongst pernitrides because of the seemingly misfit charge balance and stoichiometry. La+3N2 has been predicted to be stabilized by resonance between two mesomeric states of bonding in the pernitride group, which include a remarkable NN single bond limiting state. However, successful synthesis of this compound remained extant. Here, we report synthesis of LaN2 through shock-driven decomposition of lanthanum nitrate. The result is noteworthy as a first quantitative measure of the stability of NN single bonds in solids formed at GPa-level pressure and with respect to a possible cross-over of redox potentials in the nitrogen- and oxygen-systems at high pressure and temperature.

Original languageEnglish
Pages (from-to)202-207
Number of pages6
JournalHigh Pressure Research
Volume33
Issue number1
DOIs
Publication statusPublished - 1 Mar 2013
Externally publishedYes

Keywords

  • Crystallography
  • Diffraction
  • Geophysics
  • Landau theory
  • Shock

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    Tschauner, O., Luo, S. N., Chen, Y. J., Mcdowell, A., Knight, J., & Clark, S. M. (2013). Shock synthesis of lanthanum-III-pernitride. High Pressure Research, 33(1), 202-207. https://doi.org/10.1080/08957959.2012.761214