On-Surface Synthesis of Helicene Oligomers.

Andrés Pinar Solé Jiří Klívar Michal Šámal Irena G Stará Ivo Starý Jesús I Mendieta-Moreno Karl-Heinz Ernst Pavel Jelínek Oleksandr Stetsovych

Published in: Chemistry (Weinheim an der Bergstrasse, Germany) (2024)

We report on-surface synthesis of heterochiral 1D heptahelicene oligomers after deposition of a racemic heptahelicene monomer on an Au(111) surface followed by Ullmann coupling under ultrahigh vacuum conditions. Structure, chirality and mode of adsorption of the resulting dimers to octamers are inferred from the scanning probe microscopy and theoretical calculations.

Keyphrases

single molecule
density functional theory
molecular dynamics
quantum dots
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living cells
room temperature
mass spectrometry
reduced graphene oxide
molecularly imprinted
single cell
fluorescent probe
simultaneous determination
liquid chromatography