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Issue 19, 2011
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Coordination polymers based on a flexible bis(triazole) ligand and aromatic polycarboxylate anions: syntheses, topological structures and photoluminescent properties

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Abstract

Four new coordination polymers, namely, {[Cd(btmx)(BTEC)0.5(H2O)]·H2O}n (1), {[Cd(btmx)1.5(1,2,4-HBTC)]·(H2O)2}n (2), {[Co(btmx)(HBTC)]·2H2O}n (3) and [Co(btmx)(1,4-BDC)]n (4) (btmx = 1,4-bis(1,2,4-triazol-1-ylmethyl)-2,3,5,6-tetramethylbenzene, H4BTEC = 1,2,4,5-benzenetetracarboxylic acid, 1,2,4-H3BTC = 1,2,4-benzenetricarboxylic acid, 1,3,5-H3BTC = 1,3,5-benzenetricarboxylic acid and 1,4-H2BDC = 1,4-benzenedicarboxylic acid) have been obtained under hydrothermal conditions and characterized structurally. Complex 1 is a 3D 3-fold interpenetrating (4,4)-connected net with (4·64·8)(42·62·82) topology. Complex 2 displays a 2D cabinet-like structure with infinite 1D double Cd–btmx chains. Complex 3 possesses a 3D 3-fold interpenetrating 4-connected framework with 66-dia topology. Complex 4 exhibits a (4,6)-connected 3D pillar-layered structure with point symbol of (44·62)(44·610·8). The structural differences of these complexes demonstrate that the flexible ligand btmx and aromatic polycarboxylate anions play critical roles in the formation of the resulting frameworks. Furthermore, the photoluminescent properties of 1 and 2 have been studied in the solid state at room temperature.

Graphical abstract: Coordination polymers based on a flexible bis(triazole) ligand and aromatic polycarboxylate anions: syntheses, topological structures and photoluminescent properties

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Publication details

The article was received on 25 Jan 2011, accepted on 06 Jul 2011 and first published on 10 Aug 2011


Article type: Paper
DOI: 10.1039/C1CE05129F
Citation: CrystEngComm, 2011,13, 5943-5950
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    Coordination polymers based on a flexible bis(triazole) ligand and aromatic polycarboxylate anions: syntheses, topological structures and photoluminescent properties

    Y. Mu, G. Han, S. Ji, H. Hou and Y. Fan, CrystEngComm, 2011, 13, 5943
    DOI: 10.1039/C1CE05129F

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