Synthesis and Resonance Energy Transfer Study on a Random Terpolymer Containing a 2-(Pyridine-2-yl)thiazole Donor-type Ligand and a Luminescent [Ru(bpy)2(2-(triazole-4-yl)pyridine)]2+ Chromophore
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Happ, Bobby; Schäfer, Johann; Menzel, Roberto; Hager, Martin D.; Winter, Andreas; J\", ; urgen Popp, ; Beckert, Rainer; Dietzek, Benjamin; Schubert, Ulrich S.
- Abstract:
- A statistical terpolymer, containing a 2-(pyridine-2-yl)-
1,3-thiazole donor-type system and an acceptor-type [Ru(bpy)2-
(2-(triazol-4-yl)pyridine)]2+ chromophore as well as methyl methacrylate
as comonomer, was synthesized using the controlled reversible
additionfragmentation chain transfer polymerization (RAFT) approach.
Additionally, the appropriate donor- and acceptor-type copolymers
were synthesized, whereas only a maximum content of
5 mol % of the ruthenium(II) chromophore could be incorporated
into the macromolecules caused by its nitro-functionalization. The
resulting terpolymer exhibited a direct F€orster resonance energy
transfer from the thiazole to the ruthenium(II) subunit as indicated
by emission spectroscopy of the Ru(II) phosphorescence as well as
lifetime measurements and quantum yield determinations of the
thiazole fluorescence. The efficiency of the energy transfer was found to be higher than 70%.
- Year:
- 2011
- Type of Publication:
- Article
- Journal:
- Macromolecules
- Volume:
- 44
- Pages:
- 6277 - 6287