Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1324490 | Journal of Organometallic Chemistry | 2009 | 9 Pages |
Novel Ru(II) polypyridyl complexes possessing pyridylpyrazolyl tethers were synthesized. Reactions with various organometallic precursors readily afforded multinuclear complexes which possess a light-harvesting Ru(II) core and (pyridylpyrazolyl)metal fragments in high yields. Analysis of the photophysical properties of the obtained multinuclear complexes revealed that the complexes had similar absorption and emission characteristics; however, their emission quantum yields decreased in proportion to the number of metal fragments. The di- and trinuclear complexes were stable under donating solvent such as CH3CN.
Graphical abstractNovel Ru(II) polypyridyl complexes with pendant pyridylpyrazolyl ligands were synthesized and their complexation with various organometallic precursors gave a series of di- (Ru⋯M) and trinuclear (M⋯Ru⋯M) complexes containing organometallic fragments. Their electrochemical and photophysical properties were compared with those of the corresponding parent complexes.Figure optionsDownload full-size imageDownload as PowerPoint slide