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The first ternary tin(II) nitride: NaSnN.

Nicholas S P Watney1, Zoltán A Gál, Matthew D S Webster

  • 1Department of Chemistry, University of Oxford, Inorganic Chemistry Laboratory, South Parks Road, Oxford OX1 3QR, UK.

Chemical Communications (Cambridge, England)
|August 16, 2005
PubMed
Summary

Researchers discovered NaSnN, a novel ternary nitride. This compound is the first to contain tin-nitrogen bonds and divalent tin, featuring a unique layered Zintl ion structure.

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Area of Science:

  • Solid-state chemistry
  • Materials science
  • Inorganic chemistry

Background:

  • Ternary nitrides are compounds containing three elements, with nitrogen being one of them.
  • Layered structures and Zintl ions are important motifs in solid-state chemistry, influencing material properties.
  • The synthesis and characterization of novel materials containing tin-nitrogen bonds are of significant interest.

Purpose of the Study:

  • To report the synthesis and structural characterization of a new ternary nitride, NaSnN.
  • To investigate the presence of tin-nitrogen bonds and the oxidation state of tin in this new compound.
  • To explore the structural features, specifically the layered Zintl ion, of NaSnN.

Main Methods:

  • Single-crystal X-ray diffraction for structural determination.
  • Powder X-ray diffraction for phase purity analysis.
  • Elemental analysis to confirm the stoichiometry.

Main Results:

  • NaSnN crystallizes in the non-centrosymmetric layered structure type of KSnAs.
  • The structure features a novel layered Zintl ion, [SnN]-.
  • This represents the first example of a ternary nitride containing tin-nitrogen (Sn-N) bonds.
  • NaSnN is also the first reported nitride containing formally divalent tin (Sn2+).

Conclusions:

  • NaSnN is a groundbreaking material, expanding the family of ternary nitrides.
  • The discovery of Sn-N bonds and divalent tin in NaSnN opens new avenues for research in tin-based inorganic compounds.
  • The unique layered Zintl structure of NaSnN warrants further investigation into its physical and chemical properties.

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