首页> 美国卫生研究院文献>Bioinorganic Chemistry and Applications >Synthesis Structure DNA Interaction and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 110-Phenanthroline
【2h】

Synthesis Structure DNA Interaction and SOD Activity of Three Nickel(II) Complexes Containing L-Phenylalanine Schiff Base and 110-Phenanthroline

机译:三种含L-苯丙氨酸席夫碱和110-菲咯啉的镍(II)配合物的合成结构DNA相互作用和SOD活性

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Three hexacoordinated octahedral nickel(II) complexes, [Ni(sal-L-phe)(phen)(CH3OH)]·CH3OH (>1), [Ni(naph-L-phe)(phen)(CH3OH)] (>2), and [Ni(o-van-L-phe)(phen)(CH3OH)]·5CH3OH (>3) (sal-L-phe = a Schiff base derived from salicylaldehyde and L-phenylalanine, naph-L-phe = a Schiff base derived from 2-hydroxy-1-naphthaldehyde and L-phenylalanine, o-van-L-phe = a Schiff base derived from o-vanillin and L-phenylalanine, and phen = 1,10-phenanthroline), have been synthesized and characterized by elemental analysis, IR spectra, and single-crystal X-ray diffraction. The interactions of these complexes with CT-DNA were studied by UV-Vis absorption spectroscopy, fluorescence spectroscopy, circular dichroism spectroscopy, and viscosity measurements. The binding constant (K b) values of 1.82 × 104 M−1 for >1, 1.96 × 104 M−1 for >2, and 2.02 × 104 M−1 for >3 suggest that each of these complexes could bind with DNA in a moderate intercalative mode. Complex >3 exhibited a stronger interaction with CT-DNA than complexes >1 and >2. In addition, the superoxide scavenging activity of these complexes was investigated by the nitrotetrazolium blue chloride (NBT) light reduction method, and the results showed that they exhibited a significant superoxide scavenging activity with the IC50 values of 4.4 × 10−5 M for complex >1, 5.6 × 10−5 M for complex >2, and 3.1 × 10−5 M for complex >3, respectively.
机译:三种六配位八面体镍(II)配合物,[Ni(sal-L-phe)(phen)(CH3OH)]·CH3OH(> 1 ),[Ni(naph-L-phe)(phen) (CH3OH)](> 2 )和[Ni(o-van-L-phe)(phen)(CH3OH)]·5CH3OH(> 3 )(sal-L -phe =来自水杨醛和L-苯丙氨酸的席夫碱,naph-L-phe =源自2-羟基-1-萘醛和L-苯丙氨酸的席夫碱,o-van-L-phe =源自席夫碱的席夫碱已经合成了邻香兰素和L-苯丙氨酸,以及phen = 1,10-菲咯啉),并通过元素分析,IR光谱和单晶X射线衍射对其进行了表征。通过UV-Vis吸收光谱,荧光光谱,圆二色性光谱和粘度测量研究了这些络合物与CT-DNA的相互作用。 > 1 的结合常数(K b)值为1.82×10 4 M -1 ,1.96×10 4 M −1 用于> 2 ,而2.02×10 4 M -1 用于> 3 表明这些复合物中的每一个都可以以适度的插入模式与DNA结合。复合物> 3 与CT-DNA的相互作用要强于复合物> 1 和> 2 。此外,通过氯化四氮唑蓝(NBT)光还原法研究了这些配合物的超氧化物清除活性,结果表明它们具有显着的超氧化物清除活性,IC50值为4.4×10 M表示复杂的> 1 ,5.6×10 −5 M表示复杂的> 2 和3.1×10 −5 M分别表示复杂的> 3

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号