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Título: | Tuning the Spin Ground State in Heterononanuclear Nickel(II)−Copper(II) Cylinders with a Triangular Metallacyclophane Core |
Autor: | Dul, Marie-Claire; Ferrando-Soria, Jesús; Pardo, Emilio; Fabelo, Oscar CSIC ORCID; Pasán, Jorge; Ruiz-Pérez, Catalina | Fecha de publicación: | 2010 | Editor: | American Chemical Society | Citación: | Inorganic Chemistry 49(24): 11264-11266 (2010) | Resumen: | Two new heterometallic NiIInCuII(9−n) complexes [n = 1 (2) and 2 (3)] have been synthesized following a multicomponent self-assembly process from a n:(3 − n):2:6 stoichiometric mixture of Ni2+, Cu2+, L6−, and [CuL′]2+, where L and L′ are the bridging and blocking ligands 1,3,5-benzenetris(oxamate) and N,N,N′,N′′,N′′-pentamethyldiethylenetriamine, respectively. Complexes 2 and 3 possess a unique cyclindrical architecture formed by three oxamato-bridged trinuclear linear units connected through two 1,3,5-substituted benzenetris(amidate) bridges, giving a triangular metallacyclophane core. They behave as a ferromagnetically coupled trimer of two (2)/one (3) S = 1/2 CuII3 plus one (2)/two (3) S = 0 NiIICuII2 linear units with overall S = 1 NiIICuII8 (2) and S = 1/2 NiII2CuII7 (3) ground states. | Descripción: | 3 páginas, 2 figuras, 1 gráfico.-- et al. | Versión del editor: | http://dx.doi.org/10.1021/ic102037m | URI: | http://hdl.handle.net/10261/56089 | DOI: | 10.1021/ic102037m | ISSN: | 0020-1669 | E-ISSN: | 1520-510X |
Aparece en las colecciones: | (ICMA) Artículos |
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