Mono- and bi-nuclear ruthenium(II) complexes containing a new asymmetric ligand 3-(pyrazin-2-yl)-as-triazino[5,6-f ]1,10-phenanthroline: synthesis, characterization and DNA-binding properties
作者:Xiao-Hua Zou、Bao-Hui Ye、Hong Li、Jin-Gang Liu、Ya Xiong、Liang-Nian Ji
DOI:10.1039/a900064j
日期:——
A novel asymmetric ligand 3-(pyrazin-2-yl)-as-triazino[5,6-f ]1,10-phenanthroline (pztp) and its mono- and bi-nuclear complexes [Ru(bpy)2(pztp)]2+ 1 and [(bpy)2Ru(pztp)Ru(bpy)2]4+ 2 (bpy = 2,2′-bipyridine) have been synthesized and characterized by UV/VIS, IR, 1H NMR and mass spectra. The electrochemical behaviours of complexes 1 and 2 were observed and displayed oxidation potentials at 1.37 and 1
新型不对称配体3-(吡嗪-2-基)-作为-triazino [5,6 - f ] 1,10-菲咯啉(pztp)及其单核和双核配合物[Ru(bpy)2(pztp) ] 2+ 1和[(联吡啶)2的Ru(pztp)的Ru(联吡啶)2 ] 4+ 2(BPY = 2,2'-联吡啶)已经被合成和表征通过UV / VIS,IR,1 H NMR和质量光谱。观察到复合物1和2的电化学行为和在1.37和1.39和1.60 V显示氧化电位VS。饱和甘汞电极。还已经通过分光光度法和粘度测量研究了两种复合物与小牛胸腺DNA的结合。结果表明,两种复合物与DNA的相互作用方式截然不同。尽管单核复合物1的低变色值很小,但仍插入DNA碱基对中,而双核复合物2则通过静电相互作用与DNA结合。讨论了外消旋复合物针对小牛胸腺DNA的透析液的圆形二色性信号。