Halide‐Guided Oligo(aryl‐triazole‐amide)s Foldamers: Receptors for Multiple Halide Ions
作者:Ying Wang、Junfeng Xiang、Hua Jiang
DOI:10.1002/chem.201001560
日期:2011.1.10
characterized a series of oligo(phenyl‐amide‐triazole)s that can fold into a helical conformation guided by halide ions. Their binding models and affinities are highly dependent on the length of the foldamer, media and the inducing capability of halide ions. The short foldamer with one helical turn shows a 1:1 binding stoichiometry to all halides, while the longer foldamer with two or three helical turns in
我们合成并表征了一系列低聚(苯基酰胺三唑),它们可以折叠成由卤离子引导的螺旋构象。它们的结合模式和亲和力是高度依赖于foldamer,媒体和卤化物离子的诱导能力的长度。具有一个螺旋转角的短折叠剂对所有卤化物显示1:1的化学计量比,具有两个或三个螺旋转角的较长的折叠剂原则上可以与氯离子甚至溴离子形成1:2的络合物,从而提高结合亲和力。定量NOE计算的结果表明,较长的折叠剂应增加其螺旋间距,以释放卤离子之间的静电排斥力。