Synthesis, Properties, and Two-Dimensional Adsorption Characteristics of [6]Hexahelicene-7-carboxylic acid.

Maarten W van der MeijdenTatyana BalandinaOleksandr IvasenkoSteven De FeyterKlaus WurstRichard M Kellogg

Published in: Chemistry (Weinheim an der Bergstrasse, Germany) (2016)

A convergent synthesis of racemic [6]hexahelicene-7-carboxylic acid by cross-coupling of a bicyclic and a tricyclic component is described. A metal-catalyzed ring-closure is also a fundamental component of the synthetic approach. Scanning tunneling microscopy (STM) measurements of the racemate self-assembled on Au(111) at liquid-solid interface revealed the formation of ordered racemic 2D crystals.

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