Synthesis and Structural Characterization of Sr2NbN3and BaThN2

✍ Scribed by X.Z. Chen; Harry A. Eick; Wieslaw Lasocha

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 346 KB
• Volume: 138
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1998.7786

✦ Synopsis

Two ternary nitrides, Sr 2 NbN 3 and BaThN 2 , have been synthesized by heating under flowing N 2 at 900°C the appropriate molar mixtures of Sr 2 N and NbN, and Ba 2 N and Th 3 N 4 , respectively. The structure of Sr 2 NbN 3 was refined by the Rietveld method from X-ray powder diffraction data. It crystallizes isotypically with Ba 2 TaN 3 and Ba 2 ZnO 3 [space group C2/c (No. 15); a ‫؍‬ 5.9864(2) A s ; b ‫؍‬ 11.2271(3) A s ; c ‫؍‬ 12.5465(1) A s ; ‫؍‬ 92.587(2)°, and Z ‫؍‬ 8]. Based on its powder X-ray diffraction pattern BaThN 2 is believed to be isostructural with BaCeN 2 and RbScO 2 [space group P6 3 /mmc (No. 194); a ‫؍‬ 3.7523(6) A s ; c ‫؍‬ 12.858(1) A s , and Z ‫؍‬ 2]. Magnetic susceptibility data are consistent with the structural results.