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Issue 15, 2016
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Multifunctional chemical sensors and luminescent thermometers based on lanthanide metal–organic framework materials

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Abstract

Six new highly symmetrical and isostructural 3D lanthanide metal–organic frameworks (Ln-MOFs) {[Ln2(Ccbp)3·6H2O]·3Cl·4H2O} Ln = Tb (1), Eu (2), Gd (3), Sm (4), Er (5) and Yb (6), Ccbp = 4-carboxy-1-(4-carboxybenzyl)pyridinium, and the mixed Ln-MOF {[Tb1.828Eu0.172(Ccbp)3·6H2O]·3Cl·4H2O} (7) have been successfully synthesized and fully characterized. The complex 1 was utilized as a representative chemosensor to detect small molecules, cations and anions, respectively. Interestingly, 1 exhibited dual-functional detection of Pb2+ and Fe3+ ions in ethanol with excellent linear variation to quantify the corresponding concentration change. In addition, the temperature-dependent luminescence properties of 1, 2 and 7 have also been investigated systematically, which demonstrated that both 1 and 7 have potential to quantitatively detect temperature as a luminescent thermometer over a wide range from 10–300 K for 1 and 10–170 K for 7. Thus, the as-obtained Ln-MOF materials have potential to serve as the first examples of a multifunctional luminescent sensor for quantitatively detecting the temperature (10–300 K) and the concentration of Pb2+ and Fe3+ ions in ethanol solution.

Graphical abstract: Multifunctional chemical sensors and luminescent thermometers based on lanthanide metal–organic framework materials

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Publication details

The article was received on 03 Dec 2015, accepted on 04 Mar 2016, published on 07 Mar 2016 and first published online on 07 Mar 2016


Article type: Paper
DOI: 10.1039/C5CE02367J
Citation: CrystEngComm, 2016,18, 2690-2700
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    Multifunctional chemical sensors and luminescent thermometers based on lanthanide metal–organic framework materials

    K. Wang, L. Du, Y. Ma, J. Zhao, Q. Wang, T. Yan and Q. Zhao, CrystEngComm, 2016, 18, 2690
    DOI: 10.1039/C5CE02367J

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