Spectra and DNA-binding affinities of Copper(II), Nickel(II) complexes with a novel glycine Schiff base derived from chromone
作者:Dong-dong Qin、Zheng-yin Yang、Bao-dui Wang
DOI:10.1016/j.saa.2007.01.005
日期:2007.11
New [CuL.(H(2)O)(3)]NO(3).H(2)O and [NiL.H(2)O]NO(3).2H(2)O complexes with Schiff base (LNa) derived from 6-hydroxy-3-carbaldehyde chromone (CDC) and glycine are reported. Two complexes have been characterized by elemental analysis, IR data, TG/DTA and molar conductivity. The binding of these two complexes to calf thymus DNA (CT-DNA) has been investigated, respectively, with UV-vis spectroscopy, fluorescence
新的[CuL。(H(2)O)(3)] NO(3).H(2)O和[NiL.H(2)O] NO(3).2H(2)O配合物与席夫碱(报道了衍生自6-羟基-3-甲醛甲醛(CDC)和甘氨酸的LNa)。两种配合物已通过元素分析,红外数据,TG / DTA和摩尔电导率进行了表征。分别用紫外-可见光谱,荧光光谱和粘度测量研究了这两种复合物与小牛胸腺DNA(CT-DNA)的结合。实验结果表明,这两种复合物可能通过插入模式与CT-DNA结合,[CuL。(H(2)O)(3)] NO(3).H(2)O插入DNA的深度比[[ NiL.H(2)O] NO(3).2H(2)O。它们与DNA的固有结合常数(K)为6.08 x 10(5)和2.76 x 10(5)M(-1)。