喹啉類單核錳(Ⅱ)和鈷(Ⅱ)配合物的合成、結(jié)構(gòu)、DNA/BSA鍵合及DNA切割活性(英文)
發(fā)布時間:2021-08-11 11:20
合成了2個結(jié)構(gòu)類似的喹啉類單核錳和鈷配合物[ML(H2O)3]·H2O,其中M為Mn(1)、Co(2),Na2L為8-(羧基鈉甲氧基)喹啉-2-甲酸鈉。運用紅外光譜、元素分析和X射線單晶衍射表征了其結(jié)構(gòu)。利用電子吸收和發(fā)射光譜法研究了配合物與CT-DNA及BSA的鍵合作用及配合物對DNA的切割作用。晶體解析結(jié)果表明2個配合物為同構(gòu)結(jié)構(gòu),配合物中心均為七配位的畸變五角雙錐結(jié)構(gòu)。鈷配合物2與CT-DNA的鍵合能力強于錳配合物1,兩者與BSA的作用機理為靜態(tài)淬滅機理,而鍵合常數(shù)值大小為1>2。在以H2O2作為誘導(dǎo)劑時,在同等條件下,2切割DNA的能力明顯增強。通過加入自由基捕獲劑證明了配合物對DNA的切割機理為氧化切割機理,其中活性氧為OH·。
【文章來源】:無機化學學報. 2016,32(12)北大核心SCICSCD
【文章頁數(shù)】:11 頁
【文章目錄】:
0 Introduction
1 Experimental
1.1 Materials and methods
1.2 Preparation of compounds
1.2.1 Synthesis of the ligand Na2L
1.2.2 Synthesis of[Mn L(H2O)3]·H2O(1)
1.2.3 Synthesis of[Co L(H2O)3]·H2O(2)
1.3 X-ray crystallography
1.4 DNA-binding and cleavage experiments
1.5 Protein binding studies
2 Results and discussion
2.1 Description of the crystal structures
2.2 DNA-binding and cleavage activities
2.2.1 DNA-binding studies
2.2.2 DNA cleavage studies
2.3 Protein binding studies
3 Conclusions
本文編號:3336065
【文章來源】:無機化學學報. 2016,32(12)北大核心SCICSCD
【文章頁數(shù)】:11 頁
【文章目錄】:
0 Introduction
1 Experimental
1.1 Materials and methods
1.2 Preparation of compounds
1.2.1 Synthesis of the ligand Na2L
1.2.2 Synthesis of[Mn L(H2O)3]·H2O(1)
1.2.3 Synthesis of[Co L(H2O)3]·H2O(2)
1.3 X-ray crystallography
1.4 DNA-binding and cleavage experiments
1.5 Protein binding studies
2 Results and discussion
2.1 Description of the crystal structures
2.2 DNA-binding and cleavage activities
2.2.1 DNA-binding studies
2.2.2 DNA cleavage studies
2.3 Protein binding studies
3 Conclusions
本文編號:3336065
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