| Issue |
J. Phys. IV France
Volume 7, Number C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
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| Page(s) | C2-763 - C2-764 | |
| DOI | https://doi.org/10.1051/jp4:1997230 | |
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
J. Phys. IV France 7 (1997) C2-763-C2-764
DOI: 10.1051/jp4:1997230
1 Department of Chemistry, Center for Molecular Catalysis, Seoul National University, Seoul 151-742, Korea
2 Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), 33600 Pessac cedex, France
3 Beckman Institute, Urbana IL 61801, U.S.A.
© EDP Sciences 1997
J. Phys. IV France 7 (1997) C2-763-C2-764
DOI: 10.1051/jp4:1997230
X-Ray Diffraction and X-Ray Absorption Spectrocopic Analyses for the Ruthenium Perovskites
J.-H. Choy1, S.-H. Hwang1, G. Demazeau2 and D.-Y. Jung31 Department of Chemistry, Center for Molecular Catalysis, Seoul National University, Seoul 151-742, Korea
2 Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), 33600 Pessac cedex, France
3 Beckman Institute, Urbana IL 61801, U.S.A.
Abstract
According to the Rietveld refinements and X-ray absorption studies at the Ru K-edge, it is found that three compounds La2BRuO6 (B=Li, Mg, and Zn) are monoclinic with space group of P21/n, and that the ruthenium ions with two oxidation states +IV (d4) and +V(d3) are stabilized in an octahedral site of oxide lattices. A correlation is obtained between absorption edge position and the oxidation states of ruthenium. The bond lengths of (Ru-O) for both oxidation states (RuIV and RuV) have been quantitatively obtained by the EXAFS analysis.
© EDP Sciences 1997