化学
圆二色性
对映体
不对称碳
脱氢
共轭体系
分子
手性(物理)
分辨率(逻辑)
手性拆分
结晶学
对映选择合成
组合化学
碳纤维
光化学
立体化学
有机化学
光学活性
催化作用
聚合物
手征对称性
物理
复合数
人工智能
量子力学
复合材料
计算机科学
Nambu–Jona Lasinio模型
材料科学
夸克
作者
Wei Fan,Taisuke Matsuno,Yi Han,Xuhui Wang,Qifeng Zhou,Hiroyuki Isobe,Jishan Wu
摘要
Twisted carbon nanobelts could display persistent chirality, which is desirable for material applications, but their synthesis is very challenging. Herein, we report the successful synthesis and chiral resolution of such a kind of molecules (1-H and 1) with a figure-eight configuration. 1-H was synthesized first by macrocyclization through Suzuki coupling reaction followed by benzannulation via Bi(OTf)3-mediated cyclization reaction of vinyl ether. Oxidative dehydrogenation of 1-H gave the fully π-conjugated 1. Their twisted structures were confirmed by X-ray crystallographic analysis and calculations, and they can be resolved by chiral high-performance liquid chromatography. The isolated enantiomers showed persistent chiroptical properties according to the circular dichroism measurements, with moderate |gabs| values (0.0016 for 1-H and 0.005-0.007 for 1). Their photophysical properties were also briefly studied.
科研通智能强力驱动
Strongly Powered by AbleSci AI