Synthesis of corrugated C-based nanostructures by Br-corannulene oligomerization.

Marco SmerieriIgor PíšLara FerrighiSilvia NappiniAngelique LusuanLuca VattuoneLuca VaghiAntonio PapagniElena MagnanoCristiana Di ValentinFederica BondinoLetizia Savio
Published in: Physical chemistry chemical physics : PCCP (2018)
The structure and electronic properties of carbon-based nanostructures obtained by metal surface assisted synthesis is highly dependent on the nature of the precursor molecule. Here, we report on a combined scanning tunneling microscopy, soft X-ray spectroscopy and density functional theory investigation on the surface assisted polymerization of Br-corannulene at Ag(110) and on the possibility of building a mesh of π-conjugated polymers starting from buckyball shaped molecules. Indeed, the corannulene units form one-molecule-wide ribbons in which the natural concavity of the precursor molecule is maintained. These C-based nanostructures are corrugated and merge into a covalent network on the surface.