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Issue 3, 2016
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A new TPE-based tetrapodal ligand and its Ln(III) complexes: multi-stimuli responsive AIE (aggregation-induced emission)/ILCT(intraligand charge transfer)-bifunctional photoluminescence and NIR emission sensitization

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Abstract

A tetrapodal zwitterionic-type ligand featuring both AIE (aggregation-induced emission) and ILCT (intraligand charge transfer) properties, namely 1,1′,1′′,1′′′-(4,4′,4′′,4′′′-(ethene-1,1,2,2-tetrayl)tetrakis(benzene-4,1-diyl))tetrakis(methylene)tetrapyridin-4(1H)-one (TPE-4PO) has been designed and applied to the assembly of lanthanide complexes LIFM-21(Ln) (Ln = Sm, Eu, Gd, Tb and Dy). Apart from sensitization of NIR emission of Sm3+ and Dy3+, the resulting ligand and lanthanide complexes show both AIE and ILCT-related photoluminescence behaviors. The photo-response of this system to different aggregation states, solvents’ polarity and mechanical grinding was demonstrated by distinguishable emission intensities and colours.

Graphical abstract: A new TPE-based tetrapodal ligand and its Ln(iii) complexes: multi-stimuli responsive AIE (aggregation-induced emission)/ILCT(intraligand charge transfer)-bifunctional photoluminescence and NIR emission sensitization

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Publication details

The article was received on 17 Sep 2015, accepted on 23 Nov 2015 and first published on 24 Nov 2015


Article type: Paper
DOI: 10.1039/C5DT03640B
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Dalton Trans., 2016,45, 943-950

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    A new TPE-based tetrapodal ligand and its Ln(III) complexes: multi-stimuli responsive AIE (aggregation-induced emission)/ILCT(intraligand charge transfer)-bifunctional photoluminescence and NIR emission sensitization

    Y. Zhu, Z. Wei, M. Pan, H. Wang, J. Zhang and C. Su, Dalton Trans., 2016, 45, 943
    DOI: 10.1039/C5DT03640B

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