Publikationsdatum:
2014-04-18
Beschreibung:
A novel nitride, Sr2−y Eu y B2−2x Si2+3x Al2−x N8+x (x ≃ 0.12, y ≃ 0.10) (distrontium europium diboron disilicon dialuminium octanitride), with the space group Poverline{6}2c, was synthesized from Sr3N2, EuN, Si3N4, 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 MN4 tetrahedra (M = Si, Al) and BN3 triangles, and contains substitutional disorder described by the alternative occupation of B2 or Si2N on the (0, 0, z) axis. The B2:Si2N ratio contained in an entire crystal is about 9:1.
Digitale ISSN:
2053-2296
Thema:
Chemie und Pharmazie
,
Geologie und Paläontologie
,
Physik
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