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Synthesis and Properties of Acyclic and Cryptate Europium(III) Complexes Incorporating the 3,3′‐Biisoquinoline 2,2′‐Dioxide Unit
Author(s) -
Lehn JeanMarie,
Pietraszkiewicz Marek,
Karpiuk Jerzy
Publication year - 1990
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19900730111
Subject(s) - chemistry , europium , lithium (medication) , ligand (biochemistry) , luminescence , inorganic chemistry , proton nmr , crystallography , stereochemistry , organic chemistry , ion , medicine , biochemistry , physics , receptor , optoelectronics , endocrinology
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 ]Cl 3 has also been obtained. These Eu(III) complexes present characteristic 1 H‐NMR spectra containing markedly shifted resonances. They are strongly luminescent; the emission spectra, quantum yields, and lifetimes have been determined.

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