期刊
CRYSTENGCOMM
卷 22, 期 16, 页码 2837-2844出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ce00238K
关键词
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资金
- National Natural Science Foundation of China [U1604143, U1804131]
- Training Program for Young Cadre Teachers of Higher Education Institutions in Henan Province [2018GGJS128]
- Science and Technology Development Project in Henan Province [172101410037]
In this paper, three isostructural 1D lanthanide complexes, [Ln(dppc)(H2O)(4)](n)center dot 2nH(2)O (Ln = Eu, Tb and Eu0.501Tb0.499, named 1-Eu, 2-Tb and Eu0.501Tb0.499), based on 3-(2,4-dicarboxylate phenyl)-2-pyridinecarboxylic acid (H(3)dppc) have been synthesized and characterized by elemental analysis, IR, PXRD, TG and X-ray crystallography. The complexes exhibit a 1D chain structure, which is further linked into a 3D supramolecular framework by hydrogen bonds. Tuneable emission colour of Eu0.501Tb0.499 is realized by adjusting the excitation wavelength. The sensing properties of 1-Eu and 2-Tb towards Fe3+ and aniline indicate that the two complexes have almost the same superior sensitivity and low detection limit for Fe3+ in aqueous solution, while they have different detection abilities for aniline in DMF solvent. The different detection abilities were discussed by means of PXRD, UV-vis, luminescence lifetimes and molecular surface calculations (Hirshfeld surface analysis and 2D fingerprint plots).
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