A helicalaromaticoligoamide foldamer encapsulates tartaric acid with exceptional affinity, selectivity, and diastereoselectivity. The structure of the complex has been elucidated both in solution by NMR spectroscopy and in the solid state by X-ray crystallography, making it possible to rationalize the strong effects observed, particularly the role of hydrogen bonds between the hydroxyl and carboxylic
螺旋芳族低聚酰胺折叠体以优异的亲和力、选择性和非对映选择性包裹酒石酸。已通过核磁共振光谱在溶液中和通过 X 射线晶体学在固态中阐明了配合物的结构,从而可以合理化观察到的强效应,特别是酒石酸的羟基和羧酸基团之间氢键的作用。酸和螺旋折叠胶囊的内壁,完全包围客体并使其与溶剂绝缘。
Citric acid encapsulation by a double helical foldamer in competitive solvents
A new doublehelical aromatic oligoamide capsule able to bind to citric acid in polar and protic solvents was prepared. Aromatic amino acids in the sequence encode both structural (strand...