wrap around dissymmetric dumbbell guest molecules. Structural and thermodynamic investigations allowed us to decipher the mode of binding of the helix that can bind specifically to the amide and carbamate groups of the rod. In parallel kinetic studies of threading and sliding of the helix along linear axles were also monitored by 1H NMR. Results show that threading of a dissymmetrical host can be kinetically
我们研究了线性酰胺基-氨基甲酸酯棒上不对称芳族低酰胺螺旋的自组装。带有两个不同末端的不对称序列能够包裹不对称哑铃客体分子。结构和热力学研究使我们能够破译螺旋的结合模式,该螺旋可以与棒的酰胺和氨基甲酸酯基团特异性结合。在平行动力学研究中,螺旋线沿线性轴的穿线和滑动也由1监控。1 H NMR。结果表明,不对称主体的穿线可因客体末端的性质而在动力学上产生偏见,从而使螺旋结构具有优先的滑动感。下文提出的研究进一步证明了foldaxanes具有将设计的分子识别模式与自组装动力学的精细控制相结合以构想复杂的超分子事件的宝贵潜力。
Selective Encapsulation of Disaccharide Xylobiose by an Aromatic Foldamer Helical Capsule
Xylobiose sequestration in a helicalaromaticoligoamidecapsule was evidenced by circular dichroism, NMR spectroscopy, and crystallography. The preparation of the 5 kDa oligoamide sequence was made possible by the transient use of acid‐labile dimethoxybenzyl tertiary amide substituents that disrupt helicalfolding and prevent double helix formation. Binding of other disaccharides was not detected