Polynuclear zinc(II) complexes of thiosemicarbazone: Synthesis, X-ray structure and biological evaluation
作者:Saswati、Monalisa Mohanty、Atanu Banerjee、Sonaleen Biswal、Adolfo Horn、Gerhard Schenk、Krzysztof Brzezinski、Ekkehard Sinn、Hans Reuter、Rupam Dinda
DOI:10.1016/j.jinorgbio.2019.110908
日期:2020.2
Two new dimeric Zn(II) ([ZnL1(DMSO2)}2]·DMSO (1), [ZnL2Cl}2] (2)) and a novel tetrameric Zn(II) complex ([(Zn2L3)2(μ-OAc)2(μ3-O)2] (3)), where H2L1 = 4-(p-methoxyphenyl) thiosemicarbazone of o-hydroxynapthaldehyde, HL2 = 4-(p-methoxyphenyl)thiosemicarbazone of benzoyl pyridine and H2L3 = 4-(p-chlorophenyl)thiosemicarbazone of o-vanillin are reported. Ligands and their complexes were characterized
两个新的二聚体Zn(II)([ZnL1(DMSO2)} 2]·DMSO(1),[ZnL2Cl} 2](2))和一个新的四聚体Zn(II)络合物([(Zn2L3)2(μ -OAc)2(μ3-O)2](3)),其中H2L1 =邻羟基萘甲醛的4-(对甲氧基苯基)硫代半碳酸钠,HL2 =苯甲酰基吡啶的4-(对甲氧基苯基)硫代半碳酸钠,H2L3 = 4-报道了香兰素的(对氯苯基)硫代半脲。通过光谱学和单晶X射线衍射技术表征配体及其配合物。另外,该复合物表现出对HSA(1012 M-1)的良好结合亲和力,这是由于它们具有淬灭HSA色氨酸荧光发射光谱的能力。还通过紫外可见吸收滴定,圆二色性和荧光光谱研究筛选了复合物的DNA结合倾向。结果表明,它们通过插入结合模式与CT-DNA有效相互作用,结合常数范围为103至104 M-1。在这三种复合物中,1对CT-DNA具有最高的结合亲和力。此外,使用双(2,