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Enhanced luminescence for detection of small molecules based on doped lanthanide compounds with dinuclear double-stranded helicate structure

Abstract

A novel family of lanthanide materials were explored, dinuclear double-stranded helicate structure Ln2L2(DBM)4(OAc)2 [Ln = Sm (1), Eu (2) Gd (3) and Yb (4)] constructed from β-diketonate (DBM = dibenzoylmethanide and) and an auxiliary ligand Schiff base (H2L = N, N’-bis(salicylidene)butane-1,6-diamine). The structures of the isostructural complexes 1-4 were determined by single-crystal and powder X-ray crystallography. The optical properties of these compounds can be simply enhanced by doping method, allowing for the doped materials with tunable visible and near-infrared emission. Subsequently, a multifunctional sensor was employed to detect CH3COOH, expressly in allusion to poisonous ions Al3+ and Cr2O72–. The notable quenching effect and luminescence color change will prove that doped material is a promising fluorescence probe for the identification and detection of a few of specific anions, cations and organic small molecules.

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Publication details

The article was received on 07 Aug 2019, accepted on 01 Oct 2019 and first published on 02 Oct 2019


Article type: Paper
DOI: 10.1039/C9NJ04104D
New J. Chem., 2019, Accepted Manuscript

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    Enhanced luminescence for detection of small molecules based on doped lanthanide compounds with dinuclear double-stranded helicate structure

    Y. Xu, O. Sun, Y. Qi, B. Xie and T. Gao, New J. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C9NJ04104D

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