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Multifunctional anionic indium–organic frameworks for organic dye separation, white-light emission and dual-emitting Fe3+ sensing

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Abstract

Two microporous anionic indium-based metal–organic frameworks, namely [Me2NH2][In(abtc)]·solvents (1) and [Me2NH2][In(bptc)]·solvents (2) (H4abtc = 3,3′,5,5′-azobenzenetetracarboxylic acid; H4bptc = biphenyl-3,3′,5,5′-tetracarboxylic acid), have been synthesized and characterized. Single-crystal X-ray analyses show that compounds 1 and 2 display isostructural three-dimensional anionic frameworks with PtS topology. With these structural features, both compound 1 and compound 2 can selectively separate cationic organic dyes with suitable size. White-light emission can be obtained by loading compound 2 with safranin O. In addition, compound 1 dispersed in dimethyl formamide not only retains the emission of the abtc4− ligand at about 402 nm, but also gives new emission centered at 623 nm. Based on these emissions, compound 1 was developed as an efficient dual-emitting sensor for probing Fe3+ ions.

Graphical abstract: Multifunctional anionic indium–organic frameworks for organic dye separation, white-light emission and dual-emitting Fe3+ sensing

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Publication details

The article was received on 17 Sep 2019, accepted on 06 Nov 2019 and first published on 08 Nov 2019


Article type: Paper
DOI: 10.1039/C9TC05113A
J. Mater. Chem. C, 2019, Advance Article

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    Multifunctional anionic indium–organic frameworks for organic dye separation, white-light emission and dual-emitting Fe3+ sensing

    Y. Luo, A. Xie, W. Chen, D. Shen, D. Zhang, Z. Tong and C. Lee, J. Mater. Chem. C, 2019, Advance Article , DOI: 10.1039/C9TC05113A

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