Control of guest molecule encapsulation via hybrid supramolecular capsule

研究了由氢键和金属-配体配位键构成的杂化超分子胶囊对客体分子的包裹以及客体分子对外界刺激响应的动力学行为。在二价钯配合物存在下，具有配位和氢键的空穴分子自组装成杂化超分子胶囊。杂化超分子胶囊可以包裹中性客体分子，在较低温度下结构发生扭曲。双齿膦配体对杂化超分子胶囊的客体交换动力学有很大影响。

Guest molecule encapsulation to an isolated nano-cavity and analysis of dynamic behavior of the guest molecule responded to external stimuli on hybrid supramolecular capsule constructed from hydrogen bonds and metal-ligand coordination bonds were investigated. A cavitand molecule with coordination site and hydrogen bonding site self-assembled into a hybrid supramolecular capsule in the presence of divalent palladium complex. The hybrid supramolecular capsule can encapsulate neutral guest molecules and the structure was twisted at lower temperature. Guest exchange kinetics of a hybrid supramolecular capsule was strongly influenced by bidentate phosphine ligands of palladium complex.