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The impact of grafted surface defects on the on-surface Schiff-base chemistry at the solid-liquid interface
Nerea Bilbao1, Yanxia Yu, Lander Verstraete
1Department of Chemistry, Division of Molecular Imaging and Photonics, KU Leuven - University of Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium. steven.defeyter@kuleuven.be.
Abstract:
We investigate the effect of covalently modified graphitic surfaces on the formation of single-layer covalent organic frameworks (sCOFs) at the solid-liquid interface. The impact of different densities of grafted aryl species was tested on the on-surface synthesis of three distinct imine-based 2D sCOFs. The grafted aryl species that act as defects provide steric barriers to the progress of the Schiff-base reaction, and can be locally removed to start the 2D polymer healing process. This unique strategy provides a general approach to study in situ this dynamic covalent on-surface chemistry.
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