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Issue 10, 2004
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Synthesis, characterisation and luminescent properties of a new three-dimensional lanthanide trimesate: M((C6H3)–(CO2)3) (M = Y, Ln) or MIL-78

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Abstract

A new three-dimensional europium-doped yttrium 1,3,5-benzenetricarboxylate has been obtained under hydrothermal conditions. The structure of MIL-78(Y, Eu) or Y1−xEux((C6H3)–(CO2)3) (x ∼ 0.024) has been solved from X-ray powder diffraction data (a = 6.941(1) Å, b = 14.700(2) Å, c = 8.488(1) Å, β = 107.73(1)°, V = 824.9(4) Å3, space group C2/m (no. 12)). Its structure is built up from chains of edged-sharing eight-coordinated monocapped square antiprism polyhedra and trimesate anions, creating a three-dimensional structure. The same structure is formed by replacing yttrium by a rare-earth element. The thermal behaviour of MIL-78(Y, Eu) has been investigated using TGA and X-ray thermodiffractometry and indicates that MIL-78(Y, Eu) is stable up to 450 °C. The study of the optical properties of samples doped with different rare-earths reveals strong fluorescence under VUV radiation.

Graphical abstract: Synthesis, characterisation and luminescent properties of a new three-dimensional lanthanide trimesate: M((C6H3)–(CO2)3) (M = Y, Ln) or MIL-78

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Publication details

The article was received on 06 Oct 2003, accepted on 10 Mar 2004 and first published on 13 Apr 2004


Article type: Paper
DOI: 10.1039/B312425H
Citation: J. Mater. Chem., 2004,14, 1540-1543
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    Synthesis, characterisation and luminescent properties of a new three-dimensional lanthanide trimesate: M((C6H3)–(CO2)3) (M = Y, Ln) or MIL-78

    C. Serre, F. Millange, C. Thouvenot, N. Gardant, F. Pellé and G. Férey, J. Mater. Chem., 2004, 14, 1540
    DOI: 10.1039/B312425H

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