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Issue 12, 2017
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Hydrogen-bonded supramolecular architectures based on [Zr(C2O4)4]4− anion and protonated polyamine cations

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Abstract

A series of protonated polyamine derivatives have been considered as H-bond donor units for the construction of extended networks by assemblage with the anionic metal-oxalate complex [Zr(C2O4)4]4− by means of charge-assisted H-bonds. In order to evaluate the parameters that favor the formation of 3D open-framework architectures, linear, flexible and V-shaped organic cations (Hn-Lx)y+ have been selected. Four different compounds of the formula [(H2-L1)2{Zr(C2O4)4}]·2H2O, 1, [(H2-L2)2{Zr(C2O4)4}]·4H2O, 2, [(H2-L3)2{Zr(C2O4)4}]·4H2O, 3, and [(H-L4)4{Zr(C2O4)4}]·2H2O, 4 (with L1 = thiocarbohydrazide, L2 = ortho-phenylene diamine, L3 = piperazine and L4 = 4-aminopyridine) are reported. Depending on the cations' shape, 2D to 3D H-bonded networks have been characterized. The crystal structures of all four architectures as well as their thermal stabilities are reported. The dominant intermolecular interactions and their directionality have been examined by Hirshfeld surfaces and fingerprint analysis.

Graphical abstract: Hydrogen-bonded supramolecular architectures based on [Zr(C2O4)4]4− anion and protonated polyamine cations

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Publication details

The article was received on 12 Dec 2016, accepted on 07 Feb 2017 and first published on 06 Mar 2017


Article type: Paper
DOI: 10.1039/C6CE02547A
Citation: CrystEngComm, 2017,19, 1633-1642
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    Hydrogen-bonded supramolecular architectures based on [Zr(C2O4)4]4− anion and protonated polyamine cations

    M. Hamdouni, S. Walha, C. Duhayon, A. Kabadou and J. Sutter, CrystEngComm, 2017, 19, 1633
    DOI: 10.1039/C6CE02547A

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