Synthesis and characterization of Ca<SUB>2</SUB>CoTaO<SUB>6</SUB>, a new monoclinically distorted double perovskite
The new Ca<SUB>2</SUB>CoTaO<SUB>6</SUB> double perovskite has been synthesized by a conventional solid state reaction and its unit cell parameters determined by X-ray powder diffractometry. It crystallizes in the monoclinic space group P2<i>1</i>/n. The unit cell...
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| Autores principales: | , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2011
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/35688 http://www.scielo.br/pdf/mr/v14n4/aop_0707-11.pdf |
| Aporte de: |
| Sumario: | The new Ca<SUB>2</SUB>CoTaO<SUB>6</SUB> double perovskite has been synthesized by a conventional solid state reaction and its unit cell parameters determined by X-ray powder diffractometry. It crystallizes in the monoclinic space group P2<i>1</i>/n. The unit cell parameters are: <i>a</i> = 5.507(2) Å; <i>b</i> = 5.564(3) Å; <i>c</i> = 7.798(3) Å; β = 89.99(4)° and Z = 2. The IR spectrum of the material was recorded and is briefly discussed. Some comparisons with Ca<SUB>2</SUB>CoNbO<SUB>6</SUB> and other isostructural perovskites are also performed. |
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