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Abad Galan, Laura [Author]; Cieslik, Patrick [Author]; Comba, Peter [Author]; Gast, Michael [Author]; Maury, Olivier [Author]; Neupert, Lucca [Author]; Roux, Amandine [Author]; Wadepohl, Hubert [Author]

Excited state properties of Lanthanide(III) complexes with a nonadentate bispidine ligand

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  • Media type: E-Article
  • Title: Excited state properties of Lanthanide(III) complexes with a nonadentate bispidine ligand
  • Contributor: Abad Galan, Laura [VerfasserIn]; Cieslik, Patrick [VerfasserIn]; Comba, Peter [VerfasserIn]; Gast, Michael [VerfasserIn]; Maury, Olivier [VerfasserIn]; Neupert, Lucca [VerfasserIn]; Roux, Amandine [VerfasserIn]; Wadepohl, Hubert [VerfasserIn]
  • imprint: 2021
  • Published in: Chemistry - a European journal ; 27(2021), 40, Seite 10303-10312
  • Language: English
  • DOI: 10.1002/chem.202005459
  • ISSN: 1521-3765
  • Identifier:
  • Keywords: Lanthanides ; Luminescence ; Nonadentate ligand ; Photophysics ; Quantum Yield
  • Origination:
  • Footnote:
  • Description: EuIII, TbIII, GdIII and YbIII complexes of the nonadentate bispidine derivative L2 (bispidine=3,7-diazabicyclo[3.3.1]nonane) were successfully synthesized and their emission properties studied. The X-ray crystallography reveals full encapsulation by the nonadentate ligand L2 that enforces to all LnIII cations a common highly symmetrical capped square antiprismatic (CSAPR) coordination geometry (pseudo C4v symmetry). The well-resolved identical emission spectra in solid state and in solution confirm equal structures in both media. As therefore expected, this results in long-lived excited states and high emission quantum yields ([EuIIIL2]+, H2O, 298 K, τ=1.51 ms, ϕ=0.35; [TbIIIL2]+, H2O, 298 K, τ=1.95 ms, ϕ=0.68). Together with the very high kinetic and thermodynamic stabilities, these complexes are a possible basis for interesting biological probes.
  • Access State: Open Access