Synthesis and Properties of Acyclic and Cryptate Europium(III) Complexes Incorporating the 3,3′-Biisoquinoline 2,2′-Dioxide Unit |
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Authors: | Jean-Marie Lehn Marek Pietraszkiewicz Jerzy Karpiuk |
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Abstract: | The lithium and europium(III) cryptates of a macrobicyclic ligand 1 incorporating the 3,3′-biisoquinoline 2,2′-dioxide 2 have been prepared. The Eu(III) complex Eu(2)2]Cl3 has also been obtained. These Eu(III) complexes present characteristic 1H-NMR spectra containing markedly shifted resonances. They are strongly luminescent; the emission spectra, quantum yields, and lifetimes have been determined. |
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