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J Am Chem Soc. 2008 Sep 3;130(35):11778-82. doi: 10.1021/ja8028119. Epub 2008 Aug 9.

Chiral kagomé lattice from simple ditopic molecular bricks.

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1
Institut de Physique des Nanostructures, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland. uta.schlickum@epfl.ch

Abstract

Self-assembly techniques allow for the fabrication of highly organized architectures with atomic-level precision. Here, we report on molecular-level scanning tunneling microscopy observations demonstrating the supramolecular engineering of complex, regular, and long-range ordered periodic networks on a surface atomic lattice using simple linear molecular bricks. The length variation of the employed de novo synthesized linear dicarbonitrile polyphenyl molecules translates to distinct changes of the bonding motifs that lead to hierarchic order phenomena and unexpected changes of the surface tessellations. The achieved 2D organic networks range from a close-packed chevron pattern via a rhombic network to a hitherto unobserved supramolecular chiral kagomé lattice.

PMID:
18693686
DOI:
10.1021/ja8028119
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