Premium
Front Cover: Donor–Acceptor Interactions Induced Interfacial Synthesis of an Ultrathin Fluoric 2D Polymer by Photochemical [2+2] Cycloaddition (Chem. Eur. J. 11/2021)
Author(s) -
Sun Qingzhu,
Pan Qingyan,
Ban Yanqi,
Liu Hui,
Fan Chunyan,
Sun Lishui,
Zhao Yingjie
Publication year - 2021
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202005502
Subject(s) - monomer , polymerization , materials science , polymer , acceptor , cycloaddition , photochemistry , chemical physics , nanotechnology , chemistry , organic chemistry , physics , catalysis , composite material , condensed matter physics
A crystalline and ultrathin two‐dimensional polymer (2DP) film was successfully synthesized at the air/water interface through [2+2] photo‐cycloaddition. The self‐assembly process induced from the strong donor–acceptor interactions realizes the pre‐organization of the monomers which is the key role to keep the highly ordered structure in the subsequent photo‐polymerization. Various microscopy techniques demonstrated the successful formation of the ultrathin, large‐area, and free‐standing 2DP film. TERS technology was applied to verify the successful polymerization. More importantly, the molecular structure of the 2DP was explicitly analyzed by a combination of SAED pattern and molecular‐mechanics‐based structural simulation. More information can be found in the Communication by L. Sun, Y. Zhao, et al. on page 3661.