Construction of hybrid supramolecular capsule through hydrogen bond and metal-ligand coordination bond, and dynamic guest encapsulation

以四溴空穴为原料，分六步合成了多功能化的C_(2v)-空穴。通过氢键和金属-配体配位键，合成的空穴与Cd Cl3或Cd 2Cl2中的Pt(Dppp)(OTf)2 1：1的混合物定量地自组装成超分子杂化胶囊。胶囊的腔内充满了三氟离子和渗入的酰亚胺烷基。该胶囊在阴离子的辅助下包裹了中性客体分子，例如4，4‘-二碘联苯。用核磁共振技术对包合物进行了鉴定。客体交换的动力学可由阴离子的数量和/或类型或其他影响(如溶剂的极性)控制。

Multifunctionalized C_<2v>-cavitand was synthesized in six steps from a tetrabromo cavitand. A 1:1 mixture of the synthesized cavitand and Pt(dppp)(OTf)_2 in CDCl_3 or CD_2Cl_2 quantitatively self-assemble into a supramolecular hybrid capsule through hydrogen bond and metal-ligand coordination bond. Cavity of the capsule is filled with triflate ion and penetrated alkyl groups of ureides. The capsule encapsulates a neutral guest molecule such as 4, 4'-diiodobiphenyl with the assistance of an anion. Encapsulation complex was identified by NMR technic. The kinetics of guest exchange is controllable by the amounts and/or types of anions or other influences such as the polarity of the solvent.