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Topochemical synthesis of cation ordered double perovskite oxynitrides.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 4/28/2017, Vol. 46 Issue 16, p5128-5132, 5p
- Publication Year :
- 2017
-
Abstract
- Topochemical nitridation in ammonia at moderate temperatures of cation ordered Sr<subscript>2</subscript>FeWO<subscript>6</subscript> produces new antiferromagnetic double perovskite oxynitrides Sr<subscript>2</subscript>FeWO<subscript>6−x</subscript>N<subscript>x</subscript> with 0 < x≤ 1. Nitrogen introduction induces the oxidation of Fe<superscript>2+</superscript> to Fe<superscript>3+</superscript> and decreases T<subscript>N</subscript> from 38 K (x = 0) to 13 K for Sr<subscript>2</subscript>FeWO<subscript>5</subscript>N which represents the first example of a double perovskite oxynitride with both high cationic order and nitrogen content. This synthetic approach can be extended to other cation combinations expanding the possibility of new materials in the large group of double perovskites. [ABSTRACT FROM AUTHOR]
- Subjects :
- PEROVSKITE synthesis
TOPOCHEMICAL reactions
OXIDATION
Subjects
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 46
- Issue :
- 16
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 122583608
- Full Text :
- https://doi.org/10.1039/c7dt00800g