Center for Chemistry of High-Performance and Novel Materials, Department of Chemistry, Zhejiang University , Hangzhou, Zhejiang 310027, PR China.
Org Lett. 2013 Sep 20;15(18):4722-5. doi: 10.1021/ol402048n. Epub 2013 Aug 29.
Host-guest complexation between a pillar[5]arene with mono(ethylene oxide) substituents and paraquat was studied. We demonstrated that this pillar[5]arene can form a 1:1 complex with paraquat in solution and in the solid state. The formation of this complex was confirmed by proton NMR spectroscopy, electrospray ionization mass spectrometry, and single crystal X-ray analysis. Furthermore, this complexation can be reversibly controlled through the sequential addition and removal of Zn powder. The host substituent effect on the complexation ability was also addressed.
主体-客体络合作用研究了具有单（氧化乙烯）取代基的杯[5]芳烃与百草枯之间的络合作用。我们证明了这种杯[5]芳烃可以在溶液中和固态中与百草枯形成 1:1 的配合物。质子 NMR 光谱、电喷雾电离质谱和单晶 X 射线分析证实了这种配合物的形成。此外，这种络合作用可以通过锌粉的顺序添加和去除来进行可逆控制。还研究了主体取代基对络合能力的影响。
