Jump to main content
Jump to site search


Luminescence properties of mechanochemically synthesized lanthanide containing MIL-78 MOFs

Author affiliations

Abstract

Three metal–organic framework (MOF) compounds, Ln0.5Gd0.5{C6H3(COO)3}; Ln = Eu, Tb, and Dy with a MIL-78 structure, have been synthesized by a solvent-free mechanochemical method from stoichiometric mixtures of benzene 1,3,5-tricarboxylic acid, C6H3(COOH)3, also known as trimesic acid, and the respective lanthanide carbonates, Ln2(CO3)3·xH2O, Ln = Eu, Gd, Tb and Dy. MIL-78 (Ln0.5Gd0.5) shows the characteristic red, green, and yellow luminescence of Eu3+, Tb3+, and Dy3+, respectively. Efficient intramolecular energy transfer from the ligand triplet state to the excited states of Ln3+ ions can be observed. The lifetimes and quantum yields of these compounds are studied and discussed in detail. Among the three compounds, the Tb3+ containing compound shows the longest lifetime and highest quantum yield due to a smaller contribution from non-radiative decay pathways and better matching of the lowest triplet energy level of the benzenetricarboxylate ligand and the resonance level of Tb3+.

Graphical abstract: Luminescence properties of mechanochemically synthesized lanthanide containing MIL-78 MOFs

Back to tab navigation

Publication details

The article was received on 18 Dec 2017, accepted on 23 Apr 2018 and first published on 27 Apr 2018


Article type: Paper
DOI: 10.1039/C7DT04771A
Citation: Dalton Trans., 2018, Advance Article
  • Open access: Creative Commons BY-NC license
  •   Request permissions

    Luminescence properties of mechanochemically synthesized lanthanide containing MIL-78 MOFs

    T. Alammar, I. Z. Hlova, S. Gupta, V. Balema, V. K. Pecharsky and A. Mudring, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C7DT04771A

    This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements