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Issue 10, 2007
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Conformation dependent network structures in the coordination polymers derived from pyridylisonicotinamides, carboxylates and Co(II): Entrapment of (H2O)14 water cluster of an unprecedented topology

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Abstract

Four coordination polymers, namely [{(H2O)4Co(μ-L1)2}·fumarate·2H2O]n1, [{(H2O)3(μ-fumarate)Co(μ-L1)2}·fumarate·2H2O]n2, [{(H2O)4Co(μ-L2)2}·terephthalate·3H2O]n3 and [{(H2O)4Co(μ-L2)2}·terephthalate·10H2O]n4 (L1 = N-(3-pyridyl)nicotinamide, L2 = N-(4-pyridyl)isonicotinamide) have been synthesized and structurally characterized mainly by single crystal X-ray diffraction techniques in order to explore the effect of hydrogen bond functionalized backbone and ligating topologies on the resultant supramolecular architectures in mixed ligand systems containing dicarboxylates as counter bridging anions. Interestingly, the counter bridging anions fumarate and terephthalate failed to coordinate to the metal centers in 1 and 34, respectively; fumarate, however, terminally connects to the metal centers in 2 resulting in the ladder topology. A (H2O)14 water cluster, having unprecedented topology, has been found entrapped in the lattice of 4.

Graphical abstract: Conformation dependent network structures in the coordination polymers derived from pyridylisonicotinamides, carboxylates and Co(ii): Entrapment of (H2O)14 water cluster of an unprecedented topology

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Publication details

The article was received on 17 Apr 2007, accepted on 25 Jun 2007 and first published on 13 Jul 2007


Article type: Paper
DOI: 10.1039/B705851A
Citation: CrystEngComm, 2007,9, 895-901
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    Conformation dependent network structures in the coordination polymers derived from pyridylisonicotinamides, carboxylates and Co(II): Entrapment of (H2O)14 water cluster of an unprecedented topology

    D. K. Kumar, A. Das and P. Dastidar, CrystEngComm, 2007, 9, 895
    DOI: 10.1039/B705851A

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