A series of metallosupramolecular [Fe2L3](BF4)4 “click” cylinders have been synthesized in excellent yields (90%–95%) from [Fe(H2O)6](BF4)2 and bis(bidentate) pyridyl-1,2,3-triazole ligands. All complexes were characterized by elemental analysis, IR, UV-vis, 1H-, 13C- and DOSY-NMR spectroscopies and, in four cases, the structures confirmed by X-ray crystallography. Molecular modeling indicated that some of these “click” complexes were of similar size and shape to related biologically active pyridylimine-based iron(II) helicates and suggested that the “click” complexes may bind both duplex and triplex DNA. Cell-based agarose diffusion assays showed that the metallosupramolecular [Fe2L3](BF4)4 “click” cylinders display no antifungal activity against S. cerevisiae. This observed lack of antifungal activity appears to be due to the poor stability of the “click” complexes in DMSO and biological media.
由 [Fe(
H2O)6](
BF4)2 和双(二齿)
吡啶基-1,2 合成了一系列
金属超分子 [Fe2L3]( )4 “点击”圆柱体,产率极高 (90%–95%) ,3-三唑
配体。所有配合物均通过元素分析、IR、UV-vis、1H-、13C-和
DOSY-NMR 光谱进行表征,并且在四种情况下,结构通过 X 射线晶体学证实。分子模型表明,其中一些“点击”复合物与相关的
生物活性
吡啶亚胺铁 (II) 螺旋结构具有相似的大小和形状,并表明“点击”复合物可能结合双链和三链 DNA。基于细胞的
琼脂糖扩散测定表明,
金属超分子 [Fe2L3]( )4“点击”圆柱体对酿酒酵母没有抗真菌活性。这种观察到的抗真菌活性缺乏似乎是由于“点击”复合物在
DMSO 和
生物介质中稳定性差所致。