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Surface‐Confined Self‐Assembled Janus Tectons: A Versatile Platform towards the Noncovalent Functionalization of Graphene
Author(s) -
Du Ping,
Jaouen Maud,
Bocheux Amandine,
Bourgogne Cyril,
Han Zheng,
Bouchiat Vincent,
Kreher David,
Mathevet Fabrice,
FioriniDebuisschert Céline,
Charra Fabrice,
Attias AndréJean
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201403572
Subject(s) - surface modification , graphene , nanotechnology , janus , supramolecular chemistry , materials science , monolayer , scanning tunneling microscope , self assembly , self assembled monolayer , chemistry , molecule , organic chemistry
A general strategy for simultaneously generating surface‐based supramolecular architectures on flat sp 2 ‐hybridized carbon supports and independently exposing on demand off‐plane functionality with controlled lateral order is highly desirable for the noncovalent functionalization of graphene. Here, we address this issue by providing a versatile molecular platform based on a library of new 3D Janus tectons that form surface‐confined supramolecular adlayers in which it is possible to simultaneously steer the 2D self‐assembly on flat C(sp 2 )‐based substrates and tailor the external interface above the substrate by exposure to a wide variety of small terminal chemical groups and functional moieties. This approach is validated throughout by scanning tunneling microscopy (STM) at the liquid–solid interface and molecular mechanics modeling studies. The successful self‐assembly on graphene, together with the possibility to transfer the graphene monolayer onto various substrates, should considerably extend the application of our functionalization strategy.