Direct Solid-State Synthesis at High Pressures of New Mixed-Metal Oxynitrides: RZrO2N (R = Pr, Nd, and Sm)

被引：40

作者：

Yang, Minghui ^{[1
,2
]}

Rodgers, Jennifer A. ^{[1
,2
]}

Middler, Lawrence C. ^{[1
,2
]}

Oro-Sole, Judith ^{[3
]}

Belen Jorge, A. ^{[3
]}

Fuertes, Amparo ^{[3
]}

Attfield, J. Paul ^{[1
,2
]}

机构：

[1] Univ Edinburgh, CSEC, Edinburgh EH9 3JZ, Midlothian, Scotland

[2] Univ Edinburgh, Sch Chem, Edinburgh EH9 3JZ, Midlothian, Scotland

[3] CSIC, Inst Ciencia Mat Barcelona, Bellaterra 08193, Spain

来源：

INORGANIC CHEMISTRY | 2009年 / 48卷 / 24期

基金：

英国工程与自然科学研究理事会;

关键词：

PEROVSKITES; NITRIDE;

D O I：

10.1021/ic902020r

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

New oxynitrides of RZrO2N (R = Pr, Nd, and Sm) have been synthesized via a direct solid-state reaction of R2O3 with Zr2ON2 at 1200-1500 degrees C under 2-3 GPa pressure. Powder X-ray diffraction shows that all three phases adopt an orthorhombic Pnma perovskite superstructure [a = 5.8537(1) angstrom, b = 8 1707(1) angstrom, and c = 5.7093(1) angstrom for NdZrO2N] and the structural distortion increases with decreasing R3+ ionic radius. This method may enable new mixed-metal oxynitrides to be synthesized without the use of nitriding gas atmospheres.

引用

页码：11498 / 11500

页数：3

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