One-dimensional and two-dimensional coordination polymers constructed from copper(II) nodes and polycarboxylato spacers: Synthesis,crystal structures and magnetic properties |
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| Authors: | Cristian D Ene Floriana Tuna Oscar Fabelo Catalina Ruiz-Pérez Augustin M Madalan Herbert W Roesky Marius Andruh |
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| Institution: | 1. Inorganic Chemistry Laboratory, Faculty of Chemistry, University of Bucharest, Str. Dumbrava Rosie 23, 020464 Bucharest, Romania;2. School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, UK;3. Laboratorio de Rayos X y Materiales Moleculares, Departamento de Fisica Fundamental II, Facultad de Física, Universidad de La Laguna, Tenerife, Spain;4. Institut für Anorganische Chemie der Universität, Tammannstr. 4, D-37077 Göttingen, Germany |
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| Abstract: | Four new coordination polymers were obtained by employing polycarboxylato spacers and cationic copper(II) complexes as nodes: ∞2Cu3(trim)2(NH3)6(H2O)3] (1); ∞1Cu(tmen)(dhtp)] (2), ∞1Cu(tmen)(hitp)(H2O)] (3), ∞1Cu(tmen)(nitp)] (4). (H3trim = trimesic acid, H2dhtp = 2,5-dihydroxy-terephthalic acid; H2hitp = 5-hydroxy-isophthalic acid, H2nitp = 5-nitro-isophthalic acid; tmen = N,N,N′,N′-tetramethyl-ethylenediamine). The crystal structures of the four compounds have been solved. Compound 1 consists of 2D coordination polymers with heart-shaped meshes, while compounds 2–4 contain infinite zigzag chains. The role of the hydrogen bond interactions in sustaining the supramolecular solid-state architectures in compounds 1 and 3 is discussed. The cryomagnetic investigation of compounds 1, 2, and 4 reveals antiferromagnetic interactions between the copper ions. |
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| Keywords: | Copper complexes Coordination polymers Polycarboxylato ligands Crystal structures Magnetic properties |
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