摘要
螺旋结构广泛存在于自然界中,常见的例子有蛋白质分子中的α螺旋肽链、决定遗传信息存储和传递的DNA双螺旋结构、规则螺旋状的螺旋藻类、旋转弯曲生长的植物藤蔓等,这些螺旋结构引起了化学家们极大的兴趣。根据以前的研究~1,我们以苯并喹啉-噁二唑为重复构筑单元获得的分子链通过超分子相互作用形成稳定的螺旋结构。这种螺旋分子具有中空结构,利用核磁共振谱仪,圆二色谱,紫外光谱等手段我们发现含孔的螺旋结构对小分子或离子具有识别结合的功能。同时,通过对螺旋分子进行了单一手性的诱导,使其能够选择性结合单一手性的分子,这有望应用于对映消旋体的手性拆分。
Helical architectures exist widely in nature, for example, α-helices polypeptide chain present in protein molecules, DNA duplex achieving the genetic information storage and transmission, spirulina class and the growth of plant vines having beautiful spiral structures. Herein, we report a type of unprecedented aromatic helical oligomers. The helical architectures possess pore structure, showing the capacity of molecular recognition as evidenced by NMR and circular dichroism measurements. It is anticipated that this type of aromatic helices will be used for racemic separation.
引文
[1]Junyan Zhu,Zeyuan Dong,Shengbin Lei,Junqiu Liu,Jiacong Shen Angew.Chem.Int.Ed.2015,54:3097.