pH control of the photophysical properties of ruthenium complexes containing 3-(pyrazin-2-yl)-1,2,4-triazole ligands
β Scribed by Nieuwenhuis, Heleen A.; Haasnoot, Jaap G.; Hage, Ronald.; Reedijk, Jan.; Snoeck, Theo L.; Stufkens, Derk J.; Vos, Johannes G.
- Book ID
- 120790286
- Publisher
- American Chemical Society
- Year
- 1991
- Tongue
- English
- Weight
- 878 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0020-1669
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π SIMILAR VOLUMES
## Abstract The synthesis of a number of new 2,2β²βbipyridine ligands functionalized with bulky amino side groups is reported. Three homoleptic polypyridyl ruthenium (II) complexes, [Ru(L)~3~]^2+^ 2(PF~6~^β^), where L is 4,4β²βdioctylaminomethylβ2,2β²βbipyridine (Ru4a), 4,4β²βdidodecylaminomethylβ2,2β²β
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
Reactions of [RhClL] (L,=diolefin or (CO)(PPh,)) with the deprotonated form of the ligand 3,5bis(pyridin-2-yl)-1,2,4-triazole (Hbpt) gave neutral, mononuclear complexes [Rh&)(bpt)]. Cationic, mono-and dinuclear species of formulae [Rh&.)(Hbpt)]+, [{Rhb}\*(bpt)]+ and [{Rh&.}@bpt)]\*+, where b=diolefi