Convergent Fabrication of a Nanoporous Two-Dimensional Carbon Network from an Aldol Condensation on Metal Surfaces

John Landers (1) , Frédéric Chérioux (2) , Maurizio de Santis (3) , Nedjma Bendiab (1) , Simon Lamare (2) , Laurence Magaud (1) , Johann Coraux (1)

1 NEEL - Quan2m - Interactions modulables dans des états quantiques 2D
2 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
3 NEEL - SIN - Surfaces, Interfaces et Nanostructures

We report a convergent surface polymerization reaction scheme on Au(111), based on a triple aldol condensation, yielding a carbon-rich, covalent nanoporous two-dimensional network. The reaction is not self-poisoning and proceeds up to a full surface coverage. The deposited precursor molecules 1,3,5-tri(4'-acetylphenyl) first form supramolecular assemblies that are converted to the porous covalent network upon heating. The formation and structure of the network and of the intermediate steps are studied with scanning tunneling microscopy, Raman spectroscopy and density functional theory.

Mots clés: nanoporous network; surface polymérization; 2D material

Domaines: Matière Condensée [cond-mat]; Matériaux

John Landers, Frédéric Chérioux, Maurizio de Santis, Nedjma Bendiab, Simon Lamare, et al.. Convergent Fabrication of a Nanoporous Two-Dimensional Carbon Network from an Aldol Condensation on Metal Surfaces. 2D Materials, 2014, 1 (3), pp.034005. ⟨10.1088/2053-1583/1/3/034005⟩. ⟨hal-01089098⟩