Polymers (Feb 2016)

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

  • Belén Fernández,
  • Itziar Oyarzabal,
  • José M. Seco,
  • Eider San Sebastián,
  • David Fairen-Jiménez,
  • Santiago Gómez-Ruiz,
  • Alfonso Salinas-Castillo,
  • Antonio J. Calahorro,
  • Antonio Rodríguez-Diéguez

DOI
https://doi.org/10.3390/polym8020039
Journal volume & issue
Vol. 8, no. 2
p. 39

Abstract

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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.

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