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Issue 48, 2018
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Ultrahigh luminescence quantum yield lanthanide coordination polymer as a multifunctional sensor

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Abstract

The investigation and development of advanced multifunctional and sensitive sensors with high luminescent quantum yield and the capability of detecting different analytes, such as metal ions, is imperative. Due to its inherent properties the lanthanide coordination complex is one candidate for sensing applications, particularly for multifunctional sensors. Herein, we present two series of alkali ion decorated lanthanide coordination polymers (Ln-CPs), which show ultrahigh luminescence quantum yields (QYs) of 77% (1a) and 92% (2a). To the best of our knowledge, 1a represents the first trifunctional lanthanide complex sensor that can simultaneous detect and discriminate three different analytes, namely H+/Cd2+/Cr3+ through a multimode optical response. Furthermore, the limit of detection (LOD) for Cr3+ is an ultralow value of 2.0 × 10−9 M with a sensing time of 2 h, which is comparable to the most sensitive Cr3+ chemosensor. More interestingly, 92% (2a) is an unprecedented luminescence QY among the reported lanthanide coordination complexes.

Graphical abstract: Ultrahigh luminescence quantum yield lanthanide coordination polymer as a multifunctional sensor

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Publication details

The article was received on 21 Sep 2018, accepted on 17 Nov 2018 and first published on 19 Nov 2018


Article type: Paper
DOI: 10.1039/C8DT03832E
Citation: Dalton Trans., 2018,47, 17432-17440
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    Ultrahigh luminescence quantum yield lanthanide coordination polymer as a multifunctional sensor

    K. Zheng, Z. Liu, Y. Jiang, P. Guo, H. Li, C. Zeng, S. W. Ng and S. Zhong, Dalton Trans., 2018, 47, 17432
    DOI: 10.1039/C8DT03832E

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