Jump to main content
Jump to site search

Issue 13, 2018
Previous Article Next Article

The peculiarities of complex formation and energy transfer processes in lanthanide complexes with 2-(tosylamino)-benzylidene-N-benzoylhydrazone

Author affiliations

Abstract

Depending on the local excess of lanthanide ions (Ln = Lu, Yb, Er, Dy, Tb, Gd, Eu, Nd) or 2-(tosylamino)-benzylidene-N-benzoylhydrazone (H2L), lanthanide complexes, containing either a mono-deprotonated ligand (Ln(HL)2X, X = Cl, NO3) or both mono- and dideprotonated ligands (Ln(L)(HL)), were preparatively obtained. The crystal structures of Lu(HL)2Cl, Yb(L)(HL)(H2O)2, Yb(L)(HL)(EtOH)2(H2O) and Er(L)(HL), determined by single crystal diffraction data or from powder diffraction data using Rietveld refinement, have shown the surprising resemblance. The study of luminescence temperature dependence of Eu(HL)2Cl and Eu(L)(HL) showed that europium luminescence is quenched by thermally-activated 5D0 → T1 energy transfer. Luminescent thermometers based on these complexes demonstrated the sensitivity of up to 7.7% at 85 K which is the highest value above liquid-nitrogen temperatures obtained to date.

Graphical abstract: The peculiarities of complex formation and energy transfer processes in lanthanide complexes with 2-(tosylamino)-benzylidene-N-benzoylhydrazone

Back to tab navigation

Supplementary files

Publication details

The article was received on 21 Nov 2017, accepted on 16 Feb 2018 and first published on 19 Feb 2018


Article type: Paper
DOI: 10.1039/C7DT04387B
Citation: Dalton Trans., 2018,47, 4524-4533
  •   Request permissions

    The peculiarities of complex formation and energy transfer processes in lanthanide complexes with 2-(tosylamino)-benzylidene-N-benzoylhydrazone

    A. D. Kovalenko, I. S. Bushmarinov, A. S. Burlov, L. S. Lepnev, E. G. Ilina and V. V. Utochnikova, Dalton Trans., 2018, 47, 4524
    DOI: 10.1039/C7DT04387B

Search articles by author

Spotlight

Advertisements