Abstract
Sr3CaRu2O9, a new 2:1 B-site ordered perovskite ruthenate, was synthesized and its structure determined based on powder X-ray, neutron and electron diffraction data. It is composed of one layer of CaO6 alternating with two layers of RuO6 perpendicular to the [111] axis of the cubic perovskite structure. The ordering leads to a {...-Ru-Ru-Ca-...} repeat unit along each of the pseudocubic directions. Sr3CaRu2O9 is the first example of this structure-type to include a majority metal with d electrons (Ru(V), d3). Three-dimensional Sr3CaRu2O9 can be transformed to the layered Ruddlesden-Popper phase Sr1.5Ca0.5RuO4 (i.e., Sr3CaRu2O8) by reduction at 1200 °C in flowing argon. The original structure can be restored by oxidation of Sr1.5Ca0.5RuO4 at 1000 °C in flowing oxygen. This remarkable transformation highlights the structural versatility afforded by the combination of ruthenium and calcium.
| Original language | English |
|---|---|
| Pages (from-to) | 2090-2091 |
| Number of pages | 2 |
| Journal | Journal of the American Chemical Society |
| Volume | 124 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Mar 13 2002 |
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ASJC Scopus subject areas
- Chemistry(all)
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Site and oxidation-state specificity yielding dimensional control in perovskite ruthenates. / Rijssenbeek, Job T.; Malo, Sylvie; Caignaert, Vincent; Poeppelmeier, Kenneth R.
In: Journal of the American Chemical Society, Vol. 124, No. 10, 13.03.2002, p. 2090-2091.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Site and oxidation-state specificity yielding dimensional control in perovskite ruthenates
AU - Rijssenbeek, Job T.
AU - Malo, Sylvie
AU - Caignaert, Vincent
AU - Poeppelmeier, Kenneth R
PY - 2002/3/13
Y1 - 2002/3/13
N2 - Sr3CaRu2O9, a new 2:1 B-site ordered perovskite ruthenate, was synthesized and its structure determined based on powder X-ray, neutron and electron diffraction data. It is composed of one layer of CaO6 alternating with two layers of RuO6 perpendicular to the [111] axis of the cubic perovskite structure. The ordering leads to a {...-Ru-Ru-Ca-...} repeat unit along each of the pseudocubic directions. Sr3CaRu2O9 is the first example of this structure-type to include a majority metal with d electrons (Ru(V), d3). Three-dimensional Sr3CaRu2O9 can be transformed to the layered Ruddlesden-Popper phase Sr1.5Ca0.5RuO4 (i.e., Sr3CaRu2O8) by reduction at 1200 °C in flowing argon. The original structure can be restored by oxidation of Sr1.5Ca0.5RuO4 at 1000 °C in flowing oxygen. This remarkable transformation highlights the structural versatility afforded by the combination of ruthenium and calcium.
AB - Sr3CaRu2O9, a new 2:1 B-site ordered perovskite ruthenate, was synthesized and its structure determined based on powder X-ray, neutron and electron diffraction data. It is composed of one layer of CaO6 alternating with two layers of RuO6 perpendicular to the [111] axis of the cubic perovskite structure. The ordering leads to a {...-Ru-Ru-Ca-...} repeat unit along each of the pseudocubic directions. Sr3CaRu2O9 is the first example of this structure-type to include a majority metal with d electrons (Ru(V), d3). Three-dimensional Sr3CaRu2O9 can be transformed to the layered Ruddlesden-Popper phase Sr1.5Ca0.5RuO4 (i.e., Sr3CaRu2O8) by reduction at 1200 °C in flowing argon. The original structure can be restored by oxidation of Sr1.5Ca0.5RuO4 at 1000 °C in flowing oxygen. This remarkable transformation highlights the structural versatility afforded by the combination of ruthenium and calcium.
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U2 - 10.1021/ja017586p
DO - 10.1021/ja017586p
M3 - Article
VL - 124
SP - 2090
EP - 2091
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 10
ER -