The temperature dependence of the emission lifetime of the series of complexes Ru(bpy),(4,4'-dpb): ? (bpy = 2,2'-bipyridine, 4,4'-dpb = 4,4'-diphenyL2,2'-bipyridine) has been studied in propionitrile/butyronitrile (4:5 u/u) solutions in the range 90-293 K. The obtained photophysical parameters show
Ruthenium complexes containing tertiary phosphines and imidazole or 2,2′-bipyridine ligands
✍ Scribed by Alzir A. Batista; Edna A. Polato; Salete L. Queiroz; Otaciro R. Nascimento; Brian R. James; Steven J. Rettig
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 687 KB
- Volume
- 230
- Category
- Article
- ISSN
- 0020-1693
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## Abstract Novel Eu^III^ complexes with bidentate phosphine oxide ligands containing a bipyridine framework, __i.e.__, [3,3′‐bis(diphenylphosphoryl)‐2,2′‐bipyridine]tris(hexafluoroacetylacetonato)europium(III) ([Eu(hfa)~3~(BIPYPO)]) and [3,3′‐bis(diphenylphosphoryl)‐6,6′‐dimethyl‐2,2′‐bipyridine]t
The Eu3+ 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