Luminescent Behavior of Ru(II) Polypyridyl Morpholine Complexes, Synthesis, Characterization, DNA, Protein Binding, Sensor Effect of Ions/Solvents and Docking Studies
作者:Ravi Kumar Vuradi、Venkat Reddy Putta、Deepika Nancherla、Satyanarayana Sirasani
DOI:10.1007/s10895-015-1755-2
日期:2016.3
New three ruthenium (II) polypyridyl complexes [Ru(phen)2mpip]2+(1) mpip = 2-(4-morpholinophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline}, (phen = 1,10-Phenanthrolene), [Ru(bpy)2mpip]2+(2) (bpy = 2,2’bipyridyl), [Ru(dmb)2mpip]2+(3) (dmb = 4, 4-dimethyl 2, 2’-bipyridine) have been synthesized and characterized by spectral studies IR, UV–vis, 1H, 13C-NMR, mass and elemental analysis. The binding properties of these three complexes towards calf-thymus DNA (CT-DNA) have been investigated by UV–Vis spectroscopy, different fluorescence methods and viscosity measurements, indicating that all the complexes bind to CT-DNA by means of intercalation, but with different binding affinities. Sensor effect of ions/solvents and BSA (Bovine Serum Albumin) binding studies of these complexes were also studied. Docking studies also reveals that complexes will bind in between base pairs (Intercalate) of DNA and gives information about the binding strength.
新的三种钌(II)聚吡啶配合物[Ru(phen)2mpip]2+(1) mpip = 2-(4-吗啉代苯基)-1H-咪唑并[4,5-f][1,10]菲咯啉},( phen = 1,10-菲咯啉), [Ru(bpy)2mpip]2+(2) (bpy = 2,2'联吡啶), [Ru(dmb)2mpip]2+(3) (dmb = 4, 4-二甲基2, 2'-联吡啶)已被合成并通过光谱研究IR、UV-vis、1H、13C-NMR、质量和元素分析进行表征。通过紫外-可见光谱、不同的荧光方法和粘度测量研究了这三种复合物与小牛胸腺 DNA (CT-DNA) 的结合特性,表明所有复合物都通过嵌入的方式与 CT-DNA 结合,但不同的结合亲和力。还研究了离子/溶剂的传感器效应以及这些复合物的 BSA(牛血清白蛋白)结合研究。对接研究还表明,复合物将结合在 DNA 碱基对(嵌入)之间,并提供有关结合强度的信息。