Hexanuclear lanthanide clusters encapsulating a mu(6)-CO32- ion displaying an unusual binding mode
Reaction of hydrated lanthanum halides (Ln=La, Pr and Nd) with LH2 [1-(2-HydroxyPhenyl)-3-(2-thienyl)-1,3-Propanedione] in presence of excess triethylamine with methanol as a solvent resulted in the isolation and structural characterization of a series of novel hexanuclear lanthanide clusters templa...
| Autores: | , , |
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| Formato: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2016 |
| País: | España |
| Recursos: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/154364 |
| Acesso em linha: | https://hdl.handle.net/2445/154364 |
| Access Level: | acceso abierto |
| Palavra-chave: | Terres rares Imants Rare earths Magnets |
| Resumo: | Reaction of hydrated lanthanum halides (Ln=La, Pr and Nd) with LH2 [1-(2-HydroxyPhenyl)-3-(2-thienyl)-1,3-Propanedione] in presence of excess triethylamine with methanol as a solvent resulted in the isolation and structural characterization of a series of novel hexanuclear lanthanide clusters templated by mu(6)-CO32- introduced via spontaneous fixation of atmospheric carbon dioxide depicting a new coordination mode of binding. This particular mode of bridging is a first report of its kind in lanthanide clusters. Magnetic analysis of the praseodymium and neodymium analogue shows strong antiferromagnetic interactions in case of praseodymium and weak antiferromagnetic interactions in case of neodymium. |
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