### 从溶剂笼到分子笼

• 收稿日期:2020-11-06 录用日期:2021-01-12 发布日期:2021-01-15
• 通讯作者: 阮文娟 E-mail:wjruan@nankai.edu.cn
• 作者简介:阮文娟, Email: wjruan@nankai.edu.cn
• 基金资助:
天津市物理化学系列课程教学团队建设项目;南开大学教育教学改革项目

### From Solvent Cage to Molecular Cage

Yue Li, Wenjuan Ruan()

• Received:2020-11-06 Accepted:2021-01-12 Published:2021-01-15
• Contact: Wenjuan Ruan E-mail:wjruan@nankai.edu.cn

Abstract:

In physical chemistry, the model of solvent cage is used to describe the relationship between reactant and solvent. In this model, the reactant molecule is surrounded by the cage constructed with solvent molecules. The solvent cage is flexible, and its size and shape are determined by the central reactant molecule. The encounter, collision and reaction between reactant molecules proceed in solvent cages. With the advancement of synthetic techniques, molecular cages, which are constructed by covalent and coordination bonds, are developed. Relative to the solvent cages connected with van der Waals force, molecular cages show much higher rigidity, thus, their effects on the reactions is expected to be more remarkable. Different from traditional catalysts that participate the reaction through the binding with reactants or intermediates, molecular cages could affect the reaction through a physical manner. By enriching reactants, altering the configuration of reactants, changing the structure of intermediates and limiting the growth of products, molecular cages could exert a profound influence on the rate and selectivity of the reaction. The research on this field is significant for the elucidation of reaction mechanism and the modulation of reaction proceeding.

MSC2000:

• G64