Synthesis, characterization and luminiscent DNA-binding study of a series of ruthenium complexes containing 2-arylimidazo[f]1,10-phenanthroline

Starting from 1,10-phenanthroline, a series of novel ligands(L), imidazo[f]1,10-phenanthroline (IP), 2-phenylimidazo[f]1,10-phenanthroline (PIP) and the derivatives, and their complexes [Ru(bpy) 2L] 2+ have been synthesized and characterized. The effects of different electron donor and acceptor grou...

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Published in:Polyhedron 1997, Vol.16 (1), p.103-107
Main Authors: Wu, Jian-Zhong, Li, Lin, Zeng, Tian-Xian, Ji, Liang-Nian, Zhou, Jian-Ying, Luo, Ting, Li, Run-Hua
Format: Article
Language:English
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Summary:Starting from 1,10-phenanthroline, a series of novel ligands(L), imidazo[f]1,10-phenanthroline (IP), 2-phenylimidazo[f]1,10-phenanthroline (PIP) and the derivatives, and their complexes [Ru(bpy) 2L] 2+ have been synthesized and characterized. The effects of different electron donor and acceptor groups on the 1H NMR, electronic absorption and emission spectra were studied. Time-resolved luminescence studies revealed that the addition of calf thymus DNA into the complex solution results in increases for both the emissive intensities and excited state lifetimes, and indicates that the electron group on L has no significant effect on the intercalation binding mode between DNA and the complexes.
ISSN:0277-5387
DOI:10.1016/0277-5387(96)00232-X