| 不同配体对钌多吡啶配合物与DNA的作用和荧光性质的影响 | |
| Effects of Different Ligands on the DNA-Binding and Fluorescence Properties of Complexes | |
| 摘要: | |
| 关键词: 多吡啶钌配合物 DNA 作用机制 荧光 | |
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| Abstract: Two polypyridyl ligands DCHIP (2-hydro-3，5-dichlorophenyl-imidazo[4，5-f][1，10] phenanthroline)，MDHIP(2，4-dihydrophenyl-imidazo[4，5-f][1，10]phenanthroline) and their ruthenium(Ⅱ) complexes [Ru(phen)2MDHIP]2+ and [Ru(phen)2DCHIP]2+ were prepared. Their DNA-binding properties were studied by spectroscopic methods and viscosity measurements. The results indicated that the complexes both bound to DNA by partial intercalation mode， but [Ru(phen)2DCHIP]2+ exhibited stronger binding affinity for DNA than [Ru(phen)2MDHIP]2+ due to the different planarities and steric effects of ligands. On the other hand， after binding to DNA， the fluorescence intensity of [Ru(phen)2MDHIP]2+ decreased， while the fluorescence intensity of [Ru(phen)2 DCHIP]2+ increased. | |
| Keywords: polypyridyl ruthenium complex DNA binding mechanism fluorescence | |
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| 张黔玲,刘剑洪,任祥忠,魏波,徐宏,张培新,刘建忠,计亮年.不同配体对钌多吡啶配合物与DNA的作用和荧光性质的影响[J].无机化学学报,2003,19(6):645-649. | |
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