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Issue 103, 2016
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Zn(II) and Cd(II) coordination networks based on N-donor ligands: synthesis, crystal structures, and sensing of nitroaromatic explosives

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Abstract

Four novel coordination networks based on N-donor ligand, [Zn(L)Cl]n (1), [Cd2(L)Cl3]n (2), [Zn(L)2(H2O)2]n (3), and [Cd(L)2(H2O)2]n (4) (HL = 5-(4-(1,2,4)triazol-1-yl-phenyl-1H-tetrazole) were synthesized and structurally characterized by single crystal X-ray diffraction, powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), infrared spectrophotometry (IR), and elemental analysis. The structure of 1 displays a two-dimensional (2D) structure with (6, 3) topology, which extends to a three-dimensional (3D) supramolecular network by C–H⋯Cl weak interactions, compound 2 can be described as a 3D 5,9-connected network based on the assembly of binuclear cadmium clusters and L ligands. Ligand in 3 and 4 is synthesized in situ, the complexes are isostructural and possess one-dimensional (1D) double chains, which further connect by O–H⋯N weak interactions to form 2D supramolecules. The configurations of 1–4 span from 1D, 2D to 3D network, which indicates that metal ions, counterions and weak interactions play important roles in the formation of the coordination polymers. Furthermore, all compounds exhibit high sensitivity sensing responses to nitroaromatic explosives.

Graphical abstract: Zn(ii) and Cd(ii) coordination networks based on N-donor ligands: synthesis, crystal structures, and sensing of nitroaromatic explosives

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Publication details

The article was received on 13 Sep 2016, accepted on 18 Oct 2016 and first published on 19 Oct 2016


Article type: Paper
DOI: 10.1039/C6RA22875E
Citation: RSC Adv., 2016,6, 101380-101388
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    Zn(II) and Cd(II) coordination networks based on N-donor ligands: synthesis, crystal structures, and sensing of nitroaromatic explosives

    J. Du, C. Li, J. Gao, X. Zhang, X. Jing, Y. Mu and L. Li, RSC Adv., 2016, 6, 101380
    DOI: 10.1039/C6RA22875E

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