Discrete M6N Octahedra in the Subnitrides Na16 Ba6N and Ag16Ca6N: A Reconsideration of the Ag8Ca3 Structure Type

✍ Scribed by G. Jeffrey Snyder; Prof. Dr. Arndt Simon

• Publisher: John Wiley and Sons
• Year: 1994
• Tongue: English
• Weight: 396 KB
• Volume: 33
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/anie.199406891

✦ Synopsis

The future of subnitride chemistry appears promising: M~6~ octahedra with a central N atom have been detected in the new compound Na~16~Ba~6~N and in the compound hitherto described as “Ag~8~Ca~3~”; the latter is actually the isotypic Ag~16~Ca~6~N (with 0.7% N)! In these compounds the M~6~N octahedra are embedded in a matrix of Na and Ag, respectively. Numerous phases with the Ag~8~Ca~3~ structure such as Ni~6~Si~2~M~3~ and Ni~6~Al~2~M~3~ (M = rare‐earth metal) may likewise be stabilized by interstitial atoms.