conformations are correlated with variable-temperature 1H and EXSY NMR to reveal that folding is cooperative and more favorable in halide-substituted naphthalenes. Helical ortho-arylene foldamers with specific aromatic sequences organize functional π-electron systems into arrangements ideal for ambipolar charge transport and show preliminary promise for the surface-mediated synthesis of structurally defined
铜催化的苯环化反应将邻(亚芳基
乙炔)低聚物转变为邻亚芳基。该方法避免了以前用于组装受阻邻位亚芳基骨架的迭代Suzuki交叉偶联反应。这些衍
生物在固态和溶液中形成螺旋形折叠结构,如X射线晶体学和溶液态NMR分析所证明的。错折叠构象的DFT计算与1 H变温和EXSY NMR相关联,表明折叠在卤素取代的
萘中是协同作用且更有利。螺旋正交具有特定芳香族序列的亚芳基折叠剂将功能性π电子系统组织为双极性电荷传输的理想排列,并为表面介导的结构确定的
石墨烯纳米带的合成显示了初步的希望。