Data di Pubblicazione:
2007
Citazione:
Highly luminescent, neutral, nine-coordinate lanthanide(III) complexes / G.S. Kottas, M. Mehlstaubl, R. Frohlich, L. De Cola. - In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. - ISSN 1434-1948. - 2007:22(2007), pp. 3465-3468. [10.1002/ejic.200700514]
Abstract:
Using a simple ligand design, we have prepared neutral, nine-coordinate lanthanide complexes that exclude water from the inner coordination sphere, thus leading to high emission quantum yields and long excited-state lifetimes. The complexes form in high synthetic yields (49-87%) by simply mixing the ligand and the lanthanide. Visible luminescence from EuIII (Φ = 60 %, τ = 2.2 ms) and TbIII (Φ = 7 %, τ = 0.2 ms) and near-infrared luminescence from YbIII (Φ = 0.7%), NdIII and Er III were observed in acetonitrile and CH2Cl2 at room temperature. In addition, the GdIII complex was prepared to gain information about the triplet state of the ligand.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
lanthanides; luminescence; sensitizers; energy transfer; carboxylate ligands
Elenco autori:
G.S. Kottas, M. Mehlstaubl, R. Frohlich, L. De Cola
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