Premium
Post‐Synthetic Decoupling of On‐Surface‐Synthesized Covalent Nanostructures from Ag(111)
Author(s) -
RastgooLahrood Atena,
Björk Jonas,
Lischka Matthias,
Eichhorn Johanna,
Kloft Stephan,
Fritton Massimo,
Strunskus Thomas,
Samanta Debabrata,
Schmittel Michael,
Heckl Wolfgang M.,
Lackinger Markus
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201600684
Subject(s) - covalent bond , intercalation (chemistry) , nanostructure , materials science , monolayer , metal , decoupling (probability) , adsorption , nanotechnology , electronic structure , chemical physics , chemical engineering , inorganic chemistry , computational chemistry , chemistry , organic chemistry , control engineering , engineering , metallurgy
The on‐surface synthesis of covalent organic nanosheets driven by reactive metal surfaces leads to strongly adsorbed organic nanostructures, which conceals their intrinsic properties. Hence, reducing the electronic coupling between the organic networks and commonly used metal surfaces is an important step towards characterization of the true material. We demonstrate that post‐synthetic exposure to iodine vapor leads to the intercalation of an iodine monolayer between covalent polyphenylene networks and Ag(111) surfaces. The experimentally observed changes from surface‐bound to detached nanosheets are reproduced by DFT simulations. These findings suggest that the intercalation of iodine provides a material that shows geometric and electronic properties substantially closer to those of the freestanding network.