作者:Hong-Xia Zhao、Dong-Sheng Guo、Yu Liu
DOI:10.1021/jp312744d
日期:2013.2.14
terminal groups, were synthesized as candidate gemini guests for the complexation of p-sulfonatocalix[4]arenes (SC4A). The 12 gemini guests are divided into five species according to the different terminal groups: imidazolium (G1–G3), pyridinium (G4–G6), quinolinium (G7), viologen (G8–G11), and 1,4-diazabicyclo[2.2.2]octane (DBO, G12). Their binding structures and stoichiometries with SC4A were examined by
合成了十二个具有不同间隔基长度和刚度以及端基的大小,形状和电荷的同位阳离子,作为p络合的候选双子宾客体。-sulfonatocalix [4]芳烃(SC4A)。12个双子座宾客根据不同的末端基团分为5种:咪唑鎓(G1-G3),吡啶鎓(G4-G6),喹啉鎓(G7),紫精(G8-G11)和1,4-二氮杂双环[2.2] .2]辛烷(DBO,G12)。通过NMR光谱检查了它们与SC4A的结合结构和化学计量,这有助于构建各种高度有序的组件。获得的结果表明,连接基团的长度以及端基上的电荷数对结合化学计量具有显着影响,而末端基团的大小和形状没有显着影响。此外,通过等温滴定量热法测定了带有末端亚基的SC4A的稳定性常数和热力学参数,