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Coexistence of Racemic and Homochiral Two-Dimensional Lattices Formed by a Prochiral Molecule: Dicarboxystilbene on Cu(110)

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Schmidt-Weber,  Philipp
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Dil,  Hugo
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Kampen,  Thorsten U.
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Horn,  Karsten
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Cortes, R., Mascaraque, A., Schmidt-Weber, P., Dil, H., Kampen, T. U., & Horn, K. (2008). Coexistence of Racemic and Homochiral Two-Dimensional Lattices Formed by a Prochiral Molecule: Dicarboxystilbene on Cu(110). Nano Letters, 8(12), 4162-4167. doi:10.1021/nl801592c.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-FB7F-3
Abstract
Dicarboxystilbene, a molecule that becomes chiral in the adsorbed state through the loss of its improper axis of rotation, forms long-range "handed" structures when adsorbed on Cu(110) as revealed by scanning tunnelling Microscopy. We show that these structures are created from chiral "adsorption complex" building blocks, giving rise to a complete set of racemic and enantiomerically pure structural assemblies. We interpret the formation of these structures in terms of a balance between hydrogen bond mediated intermolecular interactions and the adsorbate-surface structural relationship and discuss the reasons for temperature-induced conversion from the metastable enantiomerically pure to the racemic structure.