ChemInform Abstract: Glycothermal Reaction of Rare-Earth Acetate and Iron Acetylacetonate: Formation of Hexagonal LnFeO3.

✍ Scribed by M. INOUE; T. NISHIKAWA; T. NAKAMURA; T. INUI

• Book ID: 101854800
• Publisher: John Wiley and Sons
• Year: 2010
• Weight: 31 KB
• Volume: 28
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.199746028

✦ Synopsis

The title compounds LnFeO3 (Ln: Er, Tm-Ln), crystallizing in the hexagonal space group P63cm of the YMnO3 structure type, are prepared by reaction of Ln(OAc)3 and Fe(acac)3 in 1,4-butanediol at 300 • C. This phase, which forms together with small amounts of Fe3O4 and/or the garnet phase, irreversibly transforms into the perovskite phase upon calcination at ≈980 • C. Replacement of 1,4-butanediol by ethylene glycol leads to formation of Fe3O4. Hydrothermal reaction of Fe(acac)3 with Ln(OAc)3 at 300 • C, for comparison, yields a mixture of Fe2O3 and an amorphous rare earth phase.

-(INOUE, M.; NISHIKAWA, T.;