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http://repositoriodigital.ipn.mx/handle/123456789/11018Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | REGUERA, B. Y E. | - |
| dc.creator | YEE-MADEIRA, H. | - |
| dc.creator | DEMESHKO, S. | - |
| dc.creator | ECKOLD, G. | - |
| dc.creator | JIMENEZ GALLEGOS, J. | - |
| dc.date | 2012-03-27T01:48:05Z | - |
| dc.date | 2012-03-27T01:48:05Z | - |
| dc.date | 2009 | - |
| dc.date.accessioned | 2013-01-16T11:53:37Z | - |
| dc.date.available | 2013-01-16T11:53:37Z | - |
| dc.date.issued | 2013-01-16 | - |
| dc.identifier | Z. Phys. Chem. 223 (2009) 701–711 | - |
| dc.identifier | http://hdl.handle.net/123456789/531 | - |
| dc.identifier.uri | http://www.repositoriodigital.ipn.mx/handle/123456789/11018 | - |
| dc.description | The material under study belongs to the Prussian blue analogues family, which are coordination compounds with a porous framework appropriate for the storage of small molecules, among them hydrogen. The porous framework results from systematic vacancies for the octahedral building block, [M(CN)6], in a 3D structure. Mössbauer spectroscopy is a powerful tool to obtain structural information on the local environment for the iron nucleus in these materials. Mössbauer spectra of iron (2+) hexacyanometallates (III) show two slightly asymmetric quadrupole splitting doublets. These two doublets correspond to two non-equivalent structural sites for the iron atom in the framework related with a non-random vacancy distribution. The observed asymmetry was ascribed to a vibrational anisotropy for these iron sites. The asymmetry decreases on the sample cooling and for 7 K it practically disappears. The iron atom is found at the cavities surface with a mixed coordination sphere, Fe(NC)6–x(H2O)x. Such anisotropic coordination environment could explain the presence of certain vibrational anisotropy detected as asymmetric quadrupole splitting doublets. | - |
| dc.language | en | - |
| dc.publisher | Z. Phys. Chem. | - |
| dc.title | Nature of the Observed Asymmetry in Mössbauer Spectra of Iron (2+) Hexacyanometallates (III) | - |
| dc.type | Article | - |
| Aparece en las colecciones: | Doctorado | |
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| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| 2009MossbCoIIIFeII 1.pdf | 44.21 kB | Adobe PDF | Visualizar/Abrir |
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