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Luminescence Properties of Eu 3+ Complexes of Tripode and Tetrapode Ligands Containing 2,2′‐Bipyridine Units
Author(s) -
Balzani Vincenzo,
Berghmans Erik,
Lehn JeanMarie,
Sabbatini Nanda,
Terörde Robert,
Ziessel Raymond
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.19900730803
Subject(s) - chemistry , luminescence , excited state , bipyridine , photochemistry , absorption (acoustics) , absorption spectroscopy , spectral line , crystallography , atomic physics , optoelectronics , crystal structure , optics , physics , astronomy
The Eu 3+ complexes of the tripode and tetrapode ligands 1 and 2 , respectively, containing 2,2′‐bipyridine coordinating units have been prepared. The UV absorption and luminescence spectra, lifetimes, and quantum yields have been measured under a variety of experimental conditions. The contributions of different paths to the decay of the luminescent excited state are evaluated, and the structures of the complexes are discussed on the basis of spectroscopic and photophysical data.