Phase of the composition CaBaLaCu2FeO7.5: Synthesis, structure, Mösbauer spectra

The phase of the composition CaBaLaCu 2 FeO 7.5 is synthesized from the previously obtained CaCuO 2 , La 2 Cu 2 O 5 , and BaFeO 2 double oxides enriched up to 14.7% in 57 Fe. The phase has the orthorhombic crystal system with the unit cell parameters as follows: a = 0.3882(3) nm, b = 0.3911(3) nm, c...

Full description

Saved in:
Bibliographic Details
Published in:Journal of structural chemistry 2010-04, Vol.51 (2), p.374-377
Main Authors: Bekeshev, V. G., Kil’yanov, Yu. N., Stukan, R. A.
Format: Article
Language:English
Subjects:
Atomic
Atomic/Molecular Structure and Spectra
Brief Communications
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Molecular
Optical and Plasma Physics
Physical Chemistry
Solid State Physics
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The phase of the composition CaBaLaCu 2 FeO 7.5 is synthesized from the previously obtained CaCuO 2 , La 2 Cu 2 O 5 , and BaFeO 2 double oxides enriched up to 14.7% in 57 Fe. The phase has the orthorhombic crystal system with the unit cell parameters as follows: a = 0.3882(3) nm, b = 0.3911(3) nm, c = 1.1823(8) nm. Based on the Mösbauer spectra analysis, the conclusion is drawn that iron atoms occupy only Cu(1) sites in the lattice, while more than 90% of them are in the Fe 4+ valence state (80% of these atoms have the tetragonal pyramidal coordination).
ISSN:0022-4766
1573-8779
DOI:10.1007/s10947-010-0054-7