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Substitutional disorder in Sr 2− y Eu y B 2−2 x Si 2+3 x Al 2− x N 8+ x ( x ≃ 0.12, y ≃ 0.10)
Author(s) -
Funahashi Shiro,
Michiue Yuichi,
Takeda Takashi,
Xie RongJun,
Hirosaki Naoto
Publication year - 2014
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229614007414
Subject(s) - europium , crystallography , nitride , tetrahedron , group (periodic table) , crystal structure , chemistry , nitrogen , space (punctuation) , materials science , nanotechnology , ion , computer science , organic chemistry , layer (electronics) , operating system
A novel nitride, Sr 2− y Eu y B 2−2 x Si 2+3 x Al 2− x N 8+ x ( x ≃ 0.12, y ≃ 0.10) (distrontium europium diboron disilicon dialuminium octanitride), with the space group P 2 c , was synthesized from Sr 3 N 2 , EuN, Si 3 N 4 , AlN and BN under nitrogen gas pressure. The structure consists of a host framework with Sr/Eu atoms accommodated in the cavities. The host framework is constructed by the linkage of M N 4 tetrahedra ( M = Si, Al) and BN 3 triangles, and contains substitutional disorder described by the alternative occupation of B 2 or Si 2 N on the (0, 0, z ) axis. The B 2 :Si 2 N ratio contained in an entire crystal is about 9:1.