Angewandte Chemie. International edition in English 2012-08-20

Hierarchical self-assembly of polycyclic heteroaromatic stars into snowflake patterns.

Stefan-S Jester, Eva Sigmund, Lisa M Röck, Sigurd Höger

Index: Angew. Chem. Int. Ed. Engl. 51(34) , 8555-9, (2012)

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Abstract

Seeing stars: The two-dimensional patterns of the polycyclic heteroaromatic star molecules 1 on graphite vary with the side chain length. For n=12, frustrated self-assembly leads to hierarchically organized superstructures: up to 10 molecules form triangular aggregates which pack densely into hexagonal patterns with very large (15.5 nm) lattice constants.Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.