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首页> 外文期刊>Journal of Macromolecular Science. Pure and Applied Chemistry >Synthesis of Diquinolineno[1,3,7,9]Tetraazacyclododecine-7, 15 (14H, 16H)-Dibenzene, and DNA Binding Studies of Macrocyclic Co(II), Cu(II) Complexes: As New Class of Antimicrobial Agent
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Synthesis of Diquinolineno[1,3,7,9]Tetraazacyclododecine-7, 15 (14H, 16H)-Dibenzene, and DNA Binding Studies of Macrocyclic Co(II), Cu(II) Complexes: As New Class of Antimicrobial Agent

机译:二喹啉基[1,3,7,9]四氮杂环十二碳七,15(14H,16H)-二苯的合成及大环Co(II),Cu(II)配合物的DNA结合研究:作为新型抗菌剂

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摘要

The synthesis of macrocyclic ligand, diquinolineno[1,3,7,9]tetraazacyclododecine-7, 15 (14H, 16H)-dibenzene(L), is described. The metal complexes of the type [MLX2], where (M = Co(II) (1), Cu(II) (2) and X = (Cl), have been synthesized by the reaction of ligand(L) with the corresponding metal salts, and characterized by elemental analysis, FT-IR, 1H-NMR and electronic spectra. The binding property of the complexes with CT-DNA was studied by absorption spectra, viscosity measurements, as well as thermal denaturation studies. The absorption spectral results indicate that the complexes (1) and (2) are binds with base pairs of DNA. The intrinsic binding constant Kb had the value 3.8 × 104M-1 for (1) and 3.3 × 104 M-1 for (2), respectively, in 5 mM Tris-HCl/50 mM NaCl buffer at pH 7.2. The viscosity measurement results show the viscosity of sonicated rod-like DNA fragments increased when the complex were added to the solution of calf thymus-DNA. The synthesized ligand and its metal complexes have been screened for antibacterial and antifungal activities.
机译:描述了大环配体二喹啉基[1,3,7,9]四氮杂环十二烷-7,15(14H,16H)-二苯(L)的合成。 [MLX2]类型的金属配合物是通过配体(L)与相应的配体(L)反应合成的,其中(M = Co(II)(1),Cu(II)(2)和X =(Cl)金属盐,并通过元素分析,FT-IR,1H-NMR和电子光谱表征,通过吸收光谱,粘度测量以及热变性研究了复合物与CT-DNA的结合性能。表示配合物(1)和(2)与DNA碱基对结合,固有结合常数Kb对于(1)分别为3.8×104M-1,对于(2)为3.3×104 M-1。在pH 7.2的5 mM Tris-HCl / 50 mM NaCl缓冲液中,粘度测量结果表明,将复合物加入小牛胸腺DNA溶液中后,超声处理的棒状DNA片段的粘度增加,合成的配体及其金属已经针对复合物的抗菌和抗真菌活性进行了筛选。

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