Ln( iii ) complexes with triptycene based tripodal ligands: speciation and equilibria. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue New Journal of Chemistry Année : 2018

Ln( iii ) complexes with triptycene based tripodal ligands: speciation and equilibria.

Résumé

Triaminotriptycene was used as a rigid anchoring platform for preparing several organic ligands for Ln(III) complexation. In this work we present detailed speciation studies with a tripodal ligand L6 possessing terminal carboxamide coordinating moieties. The solution speciation for different [Ln]/[L] ratios is investigated using NMR and mass spectrometry and compared with those of closely related ligands L7 and L8. A special interest is devoted to chemical equilibria in metal excess, whereby different complex species are generated through slow transformations. The effect of the ionic radius along the lanthanide series is discussed for tetranuclear and trinuclear complexes.

Domaines

Chimie
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Dates et versions

hal-01966142 , version 1 (27-12-2018)

Identifiants

  • HAL Id : hal-01966142 , version 1

Citer

Josef Hamacek, Alexandra Vuillamy, Lisa Peterhans, Alexandre Homberg, Daniele Poggiali, et al.. Ln( iii ) complexes with triptycene based tripodal ligands: speciation and equilibria.. New Journal of Chemistry, 2018, 42 (10), pp.7803-7809. ⟨hal-01966142⟩
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