Powder neutron diffraction of SrNbO2N at room temperature and 1.5 K

被引：40

作者：

Ebbinghaus, SG

Weidenkaff, A

Rachel, A

Reller, A

机构：

[1] Univ Augsburg, Inst Phys, Lehrstuhl Festkorperchem, D-86159 Augsburg, Germany

[2] EMPA, Festkorperchem & Analyt, CH-8600 Dubendorf, Switzerland

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 2004年 / 60卷

关键词：

D O I：

10.1107/S0108270104016105

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The structure of strontium niobium dioxygen nitride, SrNbO2N, has been solved by powder neutron diffraction at room temperature and 1.5 K. SrNbO2N crystallizes in the tetragonal space group I4/mcm, with a = 5.7056 (4) and c = 8.1002 (9) Angstrom at room temperature, and a = 5.6938 (4) and c = 8.0974 (8) Angstrom at 1.5 K. The crystal structure is derived from the cubic perovskite archetype by a slight rotation of the Nb(O,N)(6) octahedra with respect to the tetragonal axis. A partially ordered distribution of oxygen and nitrogen on the anionic sites was found.

引用

页码：I91 / I93

页数：3

共 13 条

[1] High-temperature synthesis and structures of perovskite and n=1 Ruddlesden-Popper tantalum oxynitrides [J].