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Issue 96, 2015
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A series of mixed-ligand 2D and 3D coordination polymers assembled from a novel multifunctional pyridine-tricarboxylate building block: hydrothermal syntheses, structural and topological diversity, and magnetic and luminescent properties

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Abstract

A series of novel mixed-ligand coordination polymers, namely, {[Cd24-L)(μ3-OH)(phen)2]·2H2O}n (1), {[Mn35-L)2(phen)2(H2O)]·H2O}n (2), [Cd23-L)(H2biim)22-Hbiim)]n (3), {[Pb24-L)(μ4-bpdc)0.5(phen)2]·H2O}n (4), [Cd25-L)(μ2-bpdc)0.5(phen)2]n (5), and [Zn24-L)(μ2-bpdc)0.5(py)2]n (6), was hydrothermally synthesized using 4-(5-carboxypyridin-2-yl)isophthalic acid (H3L) as a new and virtually unexplored multifunctional pyridine-tricarboxylate building block, along with various auxiliary ligands {phen = 1,10-phenanthroline, H2biim = 2,2′-biimidazole, H2bpdc = 4,4′-biphenyldicarboxylic acid, and py = pyridine}. All the products 1–6 were characterized by IR spectroscopy, elemental, thermogravimetric, and single-crystal X-ray diffraction analyses. Compounds 1, 3, and 5 reveal 2D metal–organic layers with the kgd, fes, and 3,4,5L5 topology, respectively, whereas the metal–organic frameworks (MOFs) 2, 4, and 6 disclose 3D underlying nets with the unique (2, 4) or ins (6) topology. The results indicate that the nature of the metal(II) ion and type of auxiliary ligand play a significant role in determining the dimensionality, topology and other structural features of the obtained products. Luminescent (for 1 and 3–6) and magnetic (for 2) properties were studied and discussed.

Graphical abstract: A series of mixed-ligand 2D and 3D coordination polymers assembled from a novel multifunctional pyridine-tricarboxylate building block: hydrothermal syntheses, structural and topological diversity, and magnetic and luminescent properties

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Publication details

The article was received on 11 Jul 2015, accepted on 07 Sep 2015 and first published on 07 Sep 2015


Article type: Paper
DOI: 10.1039/C5RA13582F
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Citation: RSC Adv., 2015,5, 78889-78901
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    A series of mixed-ligand 2D and 3D coordination polymers assembled from a novel multifunctional pyridine-tricarboxylate building block: hydrothermal syntheses, structural and topological diversity, and magnetic and luminescent properties

    J. Gu, Y. Cui, J. Wu and A. M. Kirillov, RSC Adv., 2015, 5, 78889
    DOI: 10.1039/C5RA13582F

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