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Complex k-uniform tilings by a simple bitopic precursor self-assembled on Ag(001) surface

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  • Lukáš Kormoš

    (CEITEC – Central European Institute of Technology, Brno University of Technology, Purkyňova 123)

  • Pavel Procházka

    (CEITEC – Central European Institute of Technology, Brno University of Technology, Purkyňova 123)

  • Anton O. Makoveev

    (CEITEC – Central European Institute of Technology, Brno University of Technology, Purkyňova 123)

  • Jan Čechal

    (CEITEC – Central European Institute of Technology, Brno University of Technology, Purkyňova 123
    Institute of Physical Engineering, Brno University of Technology, Technická 2896/2)

Abstract

The realization of complex long-range ordered structures in a Euclidean plane presents a significant challenge en route to the utilization of their unique physical and chemical properties. Recent progress in on-surface supramolecular chemistry has enabled the engineering of regular and semi-regular tilings, expressing translation symmetric, quasicrystalline, and fractal geometries. However, the k-uniform tilings possessing several distinct vertices remain largely unexplored. Here, we show that these complex geometries can be prepared from a simple bitopic molecular precursor – 4,4’-biphenyl dicarboxylic acid (BDA) – by its controlled chemical transformation on the Ag(001) surface. The realization of 2- and 3-uniform tilings is enabled by partially carboxylated BDA mediating the seamless connection of two distinct binding motifs in a single long-range ordered molecular phase. These results define the basic self-assembly criteria, opening way to the utilization of complex supramolecular tilings.

Suggested Citation

  • Lukáš Kormoš & Pavel Procházka & Anton O. Makoveev & Jan Čechal, 2020. "Complex k-uniform tilings by a simple bitopic precursor self-assembled on Ag(001) surface," Nature Communications, Nature, vol. 11(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15727-6
    DOI: 10.1038/s41467-020-15727-6
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