paramagnetic resonance (EPR) spectra were used to confirm the photoactivated NO release of the complexes. The binding constant (Kb) of two complexes with human serum albumin (HSA) and DNA were quantitatively evaluated using fluorescence spectroscopy, Ru-Lbpy1 (Kb~106 with HSA and ~104 with DNA) had higher affinity than Ru-Lbpy2. The interactions between the complexes and HSA were investigated using matrix
合成了两个具有
8-羟基喹啉(qn)和2,2'-联
吡啶衍生物(Lbpy)作为共
配体的光活化NO供体[RuCl(qn)(Lbpy)(NO)] X(Lbpy 1 = 4,4 '-dicarboxyl -
2,2'-联吡啶,X =
氯-和Lbpy 2 = 4,4'-二甲氧基羰基-2,2'-二
吡啶,X = NO 3 - ),和其特征在于使用紫外-可见(UV-VIS光谱,傅里叶变换红外(FT-IR)光谱,核磁共振(1 H NMR),元素分析和电喷雾电离质谱(ESI-MS)光谱。[RuCl(qn)(Lbpy 2)(NO)] NO 3配合物结晶并呈现出扭曲的八面体几何形状,其中Ru–N(O)键长为1.752(6)Å,Ru–N–O角为177.6(6)°。时间分辨的FT-IR和电子顺磁共振(EPR)光谱用于确认配合物的光活化NO释放。结合常数(K b两种复合物与人
血清白蛋白(H
SA)和DNA的),使用荧光光谱法,
钌Lbpy进行定量评价1(K