MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China.
Org Lett. 2013 Feb 1;15(3):534-7. doi: 10.1021/ol303355z. Epub 2013 Jan 15.
A chemically responsive diquaternary salt with π-extended surface was made. The host-guest complexation with chemo-responsiveness between three bis(m-phenylene)-32-crown-10 (BMP32C10) derivatives and this diquaternary salt guest was studied through the sequential addition of basic and acidic reagents (diethylamine and trifluoroacetic acid, respectively). Furthermore, the host-substituent effect on the complexation geometries of these three host-guest complexes, from taco to taco-type threaded to threaded structures by changing the substituent on BMP32C10 as shown by crystal structures, was also addressed.
合成了一种具有π扩展表面的化学响应双季铵盐。通过顺序加入碱性和酸性试剂（分别为二乙胺和三氟乙酸），研究了三种双（间苯二酚）-32-冠-10（BMP32C10）衍生物与这种双季铵盐客体之间的主客体络合作用及其化学响应性。此外，还通过改变 BMP32C10 上的取代基，从晶体结构中显示的塔可型到塔可型螺旋结构再到螺旋结构，研究了主客体取代基效应对这三种主客体络合物络合几何形状的影响。
