Synthesis and characterisation of the ternary nitride, Sr2TaN3

Amy Bowman, Duncan H. Gregory

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The ternary nitridotantalate, Sr2TaN3 has been synthesised via the solid state reaction of strontium subnitride, Sr2N, with either of the tantalum nitrides TaN or Ta3N5 in a sealed system under argon at elevated temperatures. The structure of Sr2TaN3 was determined for the first time by Rietveld refinement against powder X-ray diffraction data. The compound crystallises with the Ba2ZnO3 structure [monoclinic space group C2/c (No.15), a = 5.9835(1) Å, b = 11.2832(2) Å, c = 12.5814(2) Å, β = 92.26(1)°, V = 848.75(2) Å3, Z = 8] and is isostructural with other AII2MVN3 nitrides, Ba2TaN3, Sr(Ba)2NbN3 and Sr2VN3. The nitride contains infinite chains of corner-sharing TaN4 tetrahedral anions, 1[TaN2N2/2]4-, with Ta-N distances of 1.83-1.97 Å. Magnetic measurements are consistent with a nitridotantalate(V).

Original languageEnglish
Pages (from-to)80-87
Number of pages8
JournalJournal of Alloys and Compounds
Volume348
Issue number1-2
DOIs
Publication statusPublished - Jan 13 2003

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All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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