Toward a Two-Dimensional Supramolecular Organic Framework with High Degree of Internal Order via Amphiphilic Modification  

作　　者：Zhi-Jian Yin Shu-Yan Jiang Na Liu Qiao-Yan Qi Zong-Quan Wu Tian-Guang Zhan Xin Zhao 

机构地区：[1]Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules,Center for Excellence in Molecular Synthesis,Shanghai Institute of Organic Chemistry,Chinese Academy of Sciences,Shanghai 200032 [2]Department of Polymer Science and Engineering,School of Chemistry and Chemical Engineering,Hefei University of Technology,Anhui Province,Hefei 230009 [3]Key Laboratory of the Ministry of Education for Advanced Catalysis Materials,College of Chemistry and Life Sciences,Zhejiang Normal University,Jinhua 321004

出　　处：《CCS Chemistry》2022年第1期141-150,共10页中国化学会会刊（英文）

基　　金：the National Science Fund for Distinguished Young Scholars of China(no.21725404);the Strategic Priority Research Program of the Chinese Academy of Sciences(grant no.XDB20000000);the Natural Science Foundation of Zhejiang Province(no.LY20B020005).

摘　　要：Solution-phase self-assembly of two-dimensional(2D)networks with a high degree of internal order and long-range periodicity is a great challenge.Herein,we report a rational design to improve 2D self-assembly in water through amphiphilic modification of the building block.An amphiphilic tritopic molecule(1)is designed and synthesized by introducing three hydrophilic oligo(ethylene glycol)moieties and three hydrophobic hexyl chains.The assembly of 1 and cucurbit[8]uril(CB[8])leads to the formation of a Janus 2D supramolecular organic framework(SOF),which further creates unique bilayer supramolecular networks and exhibits an unprecedentedly high degree of internal order and long-range periodicity.In contrast,the assembly of a nonamphiphilic analog(2)with CB[8]only generates a 2D SOF with a lower degree of internal order,suggesting that the inherent amphiphilicity of 1 plays a crucial role in improving its 2D self-assembly in aqueous phase.

关 键 词：SELF-ASSEMBLY supramolecular organic frameworks TWO-DIMENSIONAL AMPHIPHILICITY internal order 

分 类 号：O63[理学—高分子化学]