Redox shield enfolding a magnetic core
Ferrocenyl betadiketones were reacted with hydrated lanthanide trihalides in presence of a base to yield red color solids, whose structures were characterized by single crystal X-ray diffraction technique. Structural analysis revealed the formation of nona- and tetranuclear lanthanide oxo-hydroxo cl...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/154124 |
| Acceso en línea: | https://hdl.handle.net/2445/154124 |
| Access Level: | acceso abierto |
| Palabra clave: | Terres rares Imants Difracció de raigs X Rare earths Magnets X-rays diffraction |
| Sumario: | Ferrocenyl betadiketones were reacted with hydrated lanthanide trihalides in presence of a base to yield red color solids, whose structures were characterized by single crystal X-ray diffraction technique. Structural analysis revealed the formation of nona- and tetranuclear lanthanide oxo-hydroxo clusters [Dy9(μ4-O)2(μ3-OH)8(μ-Fca)8(Fca)8]−[HN(C2H5)3]+ (1), [Ln4(μ-OH)2(μ-OCH3)4(CH3OH)2(Fctfa)6] Ln = Yb (2), Lu (3), and [Ln4(μ-OH)2(μ-OCH3)4(CH3OH)2(Fcpfa)6] Ln = Yb (4), Lu (5). Magnetism studies revealed that 1 shows slow relaxation of magnetisation. Cyclic voltammetry studies of 1 reveal electrochemically stable quasi reversible oxidation systems whereas 2-5 showed irreversible nature. |
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