Title of article :
Lu-atom-ordered oxonitridoaluminosilicate Ba0.9Ce0.1LuAl0.2Si3.8N6.9O0.1
Author/Authors :
Simura, Rayko Institute of Multidisciplinary Research for Advanced Materials - Tohoku, University, Japan , Yamane, Hisanori Institute of Multidisciplinary Research for Advanced Materials - Tohoku, University, Japan
Abstract :
A single crystal of Ba0.9Ce0.1LuAl0.2Si3.8N6.9O0.1 (barium cerium lutetium aluminosilicate nitride oxide) was obtained by heating a mixed powder of Ba3N2, Si3N4, Al, Lu2O3, and CeO2 at 2173 K for 1 h under N2 gas at 0.85 MPa. X-ray single-crystal structure analysis revealed that the title oxynitride is hexagonal (lattice constants: a = 6.0378 (5) Å, c = 9.8133 (9) Å; space group: P63mc) and isostructural with BaYbSi4N7. (Ba,Ce) and Lu atoms occupy twelvefold and sixfold coordination sites, respectively
Keywords :
BaLuSi4N7 , crystal structure , oxynitride.
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
