Chiral tetranuclear NiII clusters derived from Schiff bases and azido co-ligands.
Chiral tetranuclear clusters have been obtained employing enantiomerically pure Schiff bases and azido coligands. The core of the new clusters shows defective dicubane topology with two vertices occupied by two l1,1,1-N3 ligands. Linkage between the NiII cations is completed with two l-O(phenoxo) an...
| Autores: | , , , |
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| Formato: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2018 |
| País: | España |
| Recursos: | 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:2445/161561 |
| Acesso em linha: | https://hdl.handle.net/2445/161561 |
| Access Level: | acceso abierto |
| Palavra-chave: | Níquel Magnetisme Dicroisme circular Nickel Magnetism Circular dichroism |
| Resumo: | Chiral tetranuclear clusters have been obtained employing enantiomerically pure Schiff bases and azido coligands. The core of the new clusters shows defective dicubane topology with two vertices occupied by two l1,1,1-N3 ligands. Linkage between the NiII cations is completed with two l-O(phenoxo) and two l-Cl bridging ligands. The new systems have been characterized by single crystal X-ray analysis, electronic circular dichroism and susceptibility/magnetization measurements that reveal ferromagnetic response and strong positive zero field splitting of the S = 4 ground state. |
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