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Journal articles
Influence of Halogen Bonds on the Compactness of Supramolecular Assemblies on Si(111)‑B
Abstract : The role of halogen bonds on the molecular structure of large assemblies
on a weakly reactive surface has been investigated. Our scanning tunneling microscopy
(STM) experiments reveal a large variation of compactness of assemblies along the
amount of halogen bonds within the building unit. In brief, we observe an increasing
compactness of the supramolecular structures for zero, one, and two halogen atoms per
molecule. Our experimental results are supported by molecular and STM calculations
where the presence of van der Waals interactions was also considered. We found that
molecular units adopt a structural arrangement that maximizes highly selective nitrogensurface
bonding and favor lateral interactions where the molecules are driven by halogen
bonds. This study suggests that the presence of halogen bonds can be an efficient tool to
control the molecular arrangement within two-dimension or one-dimension supramolecular
networks on a silicon surface.
https://hal.archives-ouvertes.fr/hal-02300270
Contributor : Mn2s Femto-St <>
Submitted on : Sunday, September 29, 2019 - 12:32:08 PM
Last modification on : Wednesday, February 10, 2021 - 10:10:03 AM
Contributor : Mn2s Femto-St <>
Submitted on : Sunday, September 29, 2019 - 12:32:08 PM
Last modification on : Wednesday, February 10, 2021 - 10:10:03 AM