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Issue 24, 2013
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Syntheses, structures and photoluminescent properties of lanthanide coordination polymers based on pyridyl functionalized imidazole dicarboxylic acid

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Abstract

A series of lanthanide coordination polymers formulated as {[Ln2(HPIDC)2(H2O)8]·2(H2PIDC)·18H2O}n [Ln = Sm (1), Eu (2)], {[Dy2(HPIDC)2(H2O)9]·2(H2PIDC)·17H2O}n (3), {[Dy3(HPIDC)4(H2O)8]·(NO3)·6H2O}n (4), {[Dy2(HPIDC)2(bdc)(H2O)4]·8H2O}n (5), {[Ln(HPIDC)(bdc)]·H3O+·H2O}n [Ln = Er (6), Tm (7), Yb (8)] (H3PIDC = 2-(pyridin-4-yl)-1H-imidazole-4,5-dicarboxylic acid, H2bdc = 1,4-benzenedicarboxylic acid) based on pyridyl functionalized imidazole dicarboxylic acid ligand have been synthesized by hydrothermal methods and characterized by single crystal X-ray diffraction, powder X-ray diffraction, elemental analysis and thermogravimetric analysis. Compounds 1–3 are one-dimensional (1D) cationic chains linked by the H3PIDC ligands, and the free H2PIDC act as counter ions in the crystal lattice. Compound 4 displays a 2D layer built up from 3-connected HPIDC2− ligands and 4-connected Dy(III) ions. While compounds 5–8 possess 2D network constructed from HPIDC2− and bdc2− ligands. The solid-state photoluminescent measurements show the photoluminescence of 1–5 are typical narrow emission bands of their lanthanide cations.

Graphical abstract: Syntheses, structures and photoluminescent properties of lanthanide coordination polymers based on pyridyl functionalized imidazole dicarboxylic acid

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Publication details

The article was received on 11 Mar 2013, accepted on 28 Mar 2013 and first published on 28 Mar 2013


Article type: Paper
DOI: 10.1039/C3RA41166D
RSC Adv., 2013,3, 9279-9287

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    Syntheses, structures and photoluminescent properties of lanthanide coordination polymers based on pyridyl functionalized imidazole dicarboxylic acid

    S. Liu, Y. Huang, Z. Lin, X. Li and R. Cao, RSC Adv., 2013, 3, 9279
    DOI: 10.1039/C3RA41166D

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