Issue 28, 2010

Efficient, stable, tunable, and easy to synthesize, handle and recycle luminescent materials: [H2NMe2]3[Ln(iii)(2,6-dipicolinolate)3] (Ln = Eu, Tb, or its solid solutions)

Abstract

Three compounds with the general formulae [H2N(Me)2]3[Ln(2,6-dpa)3] were prepared from cheap and readily available reactants. Microcrystalline compounds could be isolated in high yields (>80%) by a simple filtration, after only one hour reaction time in refluxing DMF. The Eu and Tb compounds have been structurally characterized by single crystal X-ray diffraction. The compounds have unusual high-absorption coefficients (>95%) and quantum efficiencies (∼70%). Furthermore, they are thermally stable up to 250 °C and appear to be UV and water tolerant. The emission colour of the final compound can be easily fine-tuned, by varying the Eu : Tb ratio during the preparation.

Graphical abstract: Efficient, stable, tunable, and easy to synthesize, handle and recycle luminescent materials: [H2NMe2]3[Ln(iii)(2,6-dipicolinolate)3] (Ln = Eu, Tb, or its solid solutions)

Supplementary files

Article information

Article type
Paper
Submitted
06 Jan 2010
Accepted
17 May 2010
First published
15 Jun 2010

Dalton Trans., 2010,39, 6483-6487

Efficient, stable, tunable, and easy to synthesize, handle and recycle luminescent materials: [H2NMe2]3[Ln(III)(2,6-dipicolinolate)3] (Ln = Eu, Tb, or its solid solutions)

T. J. Mooibroek, P. Gamez, A. Pevec, M. Kasunič, B. Kozlevčar, W. Fu and J. Reedijk, Dalton Trans., 2010, 39, 6483 DOI: 10.1039/C000076K

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