High-pressure synthesis and crystal structure of a new strontium ruthenium oxide: Sr{sub 2}Ru{sub 3}O{sub 10}
Journal Article
·
· Journal of Solid State Chemistry
- Univ. des Sciences et Technologies de Lille, Villeneuve d`Ascq (France). Lab. de Cristallochimie et Physicochimie du Solide
The new ternary oxide Sr{sup 2}Ru{sub 3}O{sub 10} has been prepared under hydrothermal conditions (480--650 C, 1800--2100 bars) and characterized by X-ray single crystal diffraction data. The structure was refined in C2/m space group with a = 10.985(3) {angstrom}, b = 5.635(1) {angstrom}, c = 6.452(6) {angstrom}, and {beta} = 105.3(4){degree}. The structure refinement converged to R = 0.032 and R{sub w} = 0.042. The ruthenium atoms with a mean oxidation number of 5.33 occupy two sorts of octahedral sites. The first form infinite rutile-like chains parallel to the b axis, while the second link these chains together to form layers parallel to (100) plane. The average Ru-O bond distance in the two types of octahedra does not allow assignment of an integral oxidation number to individual Ru ions. The Sr{sup 2+} cations are located in the interlayer space ensuring the stacking cohesion. The Sr{sub 2}Ru{sub 3}O{sub 10} structure can also be described by the stacking of SrO{sub 5} layers. The same stoichiometry is encountered in the barium fluorides Ba{sub 2}M{sub 3}F{sub 10} (M = Ni, Cu, or Zn) but the stacking sequence is based on BaF{sub 3} and BaF{sub 7} layers. Sr{sub 2}Ru{sub 3}O{sub 10} is the first example of strontium ruthenium oxide with Ru/Sr ratio higher than one. The Sr/Ru ratio is allowed by the existence of SrO{sub 5} layers, which creates 1.5 octahedral sites per SrO{sub 5} layer.
- OSTI ID:
- 338453
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 2 Vol. 143; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
Similar Records
Sr{sub 4}Ru{sub 3.05}O{sub 12}: A new member of the hexagonal perovskite family
Reactions of ruthenium trichloride with imidazole and histamine: Crystal structure of the complex (C{sub 5}N{sub 3}H{sub 11}){sub 2}[Ru{sub 2}Ocl{sub 10}]
Effects of stacking faults on refinement of single crystal x-ray diffraction data for Sr{sub 5}Ir{sub 3}O{sub 11}
Journal Article
·
Wed Mar 31 23:00:00 EST 1999
· Journal of Solid State Chemistry
·
OSTI ID:349926
Reactions of ruthenium trichloride with imidazole and histamine: Crystal structure of the complex (C{sub 5}N{sub 3}H{sub 11}){sub 2}[Ru{sub 2}Ocl{sub 10}]
Journal Article
·
Thu Mar 31 23:00:00 EST 1994
· Russian Journal of Coordination Chemistry
·
OSTI ID:35659
Effects of stacking faults on refinement of single crystal x-ray diffraction data for Sr{sub 5}Ir{sub 3}O{sub 11}
Journal Article
·
Tue Jan 31 23:00:00 EST 1995
· Materials Research Bulletin
·
OSTI ID:27967