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Synthesis, structure, and photoluminescence properties of coordination polymers of 4,4′,4′′,4′′′-tetrakiscarboxyphenylsilane and 3,5-bis(1′,2′,4′-triazol-1′-yl)pyridine

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Abstract

Three coordination polymers (CPs) incorporating both 4,4′,4′′,4′′′-tetrakiscarboxyphenylsilane (H4tcps) and 3,5-bis(1′,2′,4′-triazol-1′-yl)pyridine (btap), namely [Co2(tcps)(btap)(H2O)3] (1), [Co3(Htcps)2(btap)(H2O)6] (2) and [Cd3(Htcps)2(btap)(H2O)6] (3), were synthesized by a solvothermal method. Compound 1 features a 3D (3,4,5)-connected framework with the (6·75·84)(64·82)(72·9) topology. Compounds 2 and 3 are isostructural, which display an unusual 1D + 3D → 3D polythreaded supramolecular architecture with the 1D chain inserted into the channels of the two-fold interpenetrating 3D motif. Hydrogen bonds among the 3D anionic motif and the 1D cationic motif further stabilize the compounds. The structure of compounds 2 and 3 is a 3D 3-connected framework with the point symbol (103)4. The luminescence properties of compound 3 in their solid state and as dispersed in various solvents were investigated. Luminescence studies have revealed that compound 3 exhibits high sensitivity and stable anti-interference towards Fe3+ and Cu2+ cations in aqueous solution.

Graphical abstract: Synthesis, structure, and photoluminescence properties of coordination polymers of 4,4′,4′′,4′′′-tetrakiscarboxyphenylsilane and 3,5-bis(1′,2′,4′-triazol-1′-yl)pyridine

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Article information


Submitted
27 Sep 2019
Accepted
21 Oct 2019
First published
25 Oct 2019

CrystEngComm, 2020, Advance Article
Article type
Paper

Synthesis, structure, and photoluminescence properties of coordination polymers of 4,4′,4′′,4′′′-tetrakiscarboxyphenylsilane and 3,5-bis(1′,2′,4′-triazol-1′-yl)pyridine

J. Sun, T. Zhou, D. Pan, X. Zhang, Y. Wang, Y. Shi and H. Yu, CrystEngComm, 2020, Advance Article , DOI: 10.1039/C9CE01529A

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