Structural versatility of 3d-CeIII heterometallic coordination polymers using CoII or CuII

Carlos Cruz, Evgenia Spodine, Nathalie Audebrand, Diego Venegas-Yazigi, Verónica Paredes-García

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

3 Citas (Scopus)

Resumen

In the present work, we report the synthesis and characterization of two new heterometallic coordination polymers based on CeIII and containing CoII or CuII cations, assembled by the bifunctional ligand 1H-imidazole-4,5-dicarboxylic acid, [Ce(H2O)2(HIDC)Co(IDC)]·H2O CoCe and [Ce(H2O)2(H2IDC)Cu(H2O)(IDC)Cu0.2(H1.6IDC)] CuCe. Compound CoCe was obtained under one pot hydrothermal synthesis, while CuCe was synthetized by a step by step synthesis using the metalloligand [Cu(H2IDC)2(H2O)2] Cu1, as precursor. From a structural point of view CoCe presents an intrincated 3D covalent structure, in which alternating λ-Δ chiral CoII chains can be observed, which are assembled by discreet CeIII fragments, giving rise to the 3D structure. Meanwhile, CuCe presents a structure formed by [Cu2Ce2] heterometallic chains, partially assembled by CuII cations in a 2D covalent structure. Magnetic properties reveal that both CoCe and CuCe presents a global antiferromagnetic behavior, dominated by the interaction between CoII-CoII or CuII-CuII entities connected by μ2-κN,O-κO''',N' bridges, belonging to H3IDC anionic derivatives. Moreover, a weak ferromagnetism phenomenon was found in compound CoCe, corroborated by hysteresis loops and ac magnetization.

Idioma originalInglés
Páginas (desde-hasta)5155-5165
Número de páginas11
PublicaciónCrystal Growth and Design
Volumen18
N.º9
DOI
EstadoEn prensa - 18 abr 2018

Áreas temáticas de ASJC Scopus

  • Química (todo)
  • Ciencia de los materiales (todo)
  • Física de la materia condensada

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Profundice en los temas de investigación de 'Structural versatility of 3d-Ce<sup>III</sup> heterometallic coordination polymers using Co<sup>II</sup> or Cu<sup>II</sup>'. En conjunto forman una huella única.

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