Chemical Papers

, Volume 72, Issue 4, pp 809–819 | Cite as

The conjugate base of malonaldehyde as antenna-ligand towards trivalent europium and terbium ions

  • Marco Bortoluzzi
  • Andrea Reolon
  • Alberto Scrivanti
  • Francesco Enrichi
Original Paper
  • 68 Downloads

Abstract

Coordination compounds having formulae [M(MA)3] n and M(MA)(Me2Tp)2 (M = Y, Eu, Tb; MA = conjugate base of malonaldehyde; Me2Tp = tris(3,5-dimethyl-pyrazol-1-yl)borate) were synthesized and characterized. The photoluminescence features of the europium and terbium derivatives were investigated. By comparing the herein reported photoluminescence data with those relative to analogous nitro- and bromomalonaldehyde derivatives, it appears that the conjugate base of malonaldehyde is a more efficient antenna-ligand for the sensitization of Tb(III) luminescence. The experimental data were rationalized on the basis of DFT calculations. Tb(MA)(Me2Tp)2 was used as dopant for the preparation of luminescent plastic materials based on poly(methyl methacrylate).

Keywords

Lanthanides Photoluminescence Malonaldehyde Scorpionates Antenna-effect 

Notes

Acknowledgements

Ca’ Foscari University of Venice is gratefully acknowledged for financial support (Progetti di Ateneo 2014). F.E. acknowledges the PLESC project “Plasmonics for a better efficiency of solar cells” between South Africa and Italy (“Contributo del Ministero degli Affari Esteri e della Cooperazione Internazionale, Direzione Generale per la Promozione del Sistema Paese”) and VINNOVA, the Swedish Government Agency for Innovation, under the Vinnmer Marie Curie Incoming—Mobility for Growth Programme (project “Nano2solar” Ref. N.2016-02011). We are indebted with one of the anonymous referees who suggested the experiment relative to [Y0.9Eu0.1(MA)3] n .

Supplementary material

11696_2017_182_MOESM1_ESM.docx (64 kb)
Supplementary material 1 (DOCX 63 kb)

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Copyright information

© Institute of Chemistry, Slovak Academy of Sciences 2017

Authors and Affiliations

  1. 1.Dipartimento di Scienze Molecolari e NanosistemiUniversità Ca’ Foscari VeneziaMestre (Ve)Italy
  2. 2.Museo Storico della Fisica e Centro Studi e Ricerche Enrico FermiRomeItaly
  3. 3.Division of Materials Science, Department of Engineering Sciences and MathematicsLuleå University of TechnologyLuleåSweden

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