Construction of optical active metallo-supramolecular polymers from enantiopure bis-pybox ligands
作者:Ya-Qi Wang、Yao Pan、Wan-Qing Gao、Yuan Wu、Chun-Hua Liu、Yuan-Yuan Zhu
DOI:10.1016/j.tet.2019.04.023
日期:2019.7
(bis-pybox) ligands and 3d transition metal ions such as Zn2+ and Fe2+ in organic solution. The self-assembly process was investigated via UV–vis and fluorescent titration. The chiral characteristic of polymers was detected by circular dichroism. It was revealed that the phenyl-substituted polymers showed higher stability than the benzyl-substituted ones. Temperature-dependent circular dichroism spectra
通过两个对映体纯的双吡啶-二恶唑(bis - pybox)配体和有机溶液中的3d过渡金属离子(例如Zn 2+和Fe 2+)的络合,成功构建了两种类型的光学活性金属超分子聚合物。的自组装过程进行了研究通过紫外可见和荧光滴定。通过圆二色性检测聚合物的手性特征。揭示了苯基取代的聚合物显示出比苄基取代的聚合物更高的稳定性。随温度变化的圆二色性光谱证明了这种聚合物在温度变化下的动态结构。这项工作突出了在不对称催化领域中由有机特权配体设计和构建光学活性金属-超分子聚合物的机会。