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Luminescence and Magnetic Properties of Two Three-Dimensional Terbium and Dysprosium MOFs Based on Azobenzene-4,4'-Dicarboxylic Linker.

Belén FernándezItziar OyarzabalJosé M SecoEider San SebastiánDavid Fairen-JiménezSantiago Gómez-RuizAlfonso Salinas-CastilloAntonio J CalahorroAntonio Rodríguez-Diéguez
Published in: Polymers (2016)
We report the in situ formation of two novel metal-organic frameworks based on terbium and dysprosium ions using azobenzene-4,4'-dicarboxylic acid (H₂abd) as ligand, synthesized by soft hydrothermal routes. Both materials show isostructural three-dimensional networks with channels along a axis and display intense photoluminescence properties in the solid state at room temperature. Textural properties of the metal-organic frameworks (MOFs) have been fully characterized although no appreciable porosity was obtained. Magnetic properties of these materials were studied, highlighting the dysprosium material displays slightly frequency-dependent out of phase signals when measured under zero external field and under an applied field of 1000 Oe.
Keyphrases
  • metal organic framework
  • room temperature
  • single molecule
  • solid state
  • quantum dots
  • ionic liquid
  • heavy metals