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...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | Argentina |
| Institución: | Universidad Nacional de La Plata |
| Repositorio: | SEDICI (UNLP) |
| Idioma: | inglés |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/35688 |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/35688 |
| Access Level: | acceso abierto |
| Palabra clave: | Ingeniería Química Química double perovskite isostructural IR spectrum monoclinic space groups unit cell parameters X-ray diffraction solid state reactions synthesis calcium |
| 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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