On-Surface Synthesis of Silole and Disila-Cyclooctene Derivatives

Kewei Sun*, Lauri Kurki, Orlando J. Silveira, Tomohiko Nishiuchi, Takashi Kubo, Adam S. Foster*, Shigeki Kawai*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

The incorporation of Si atoms into organic compounds significantly increases a variety of functionality, facilitating further applications. Recently, on-surface synthesis was introduced into organosilicon chemistry as 1,4-disilabenzene bridged nanostructures were obtained via coupling between silicon atoms and brominated phenyl groups at the ortho position on Au(111). Here, we demonstrate a high generality of this strategy via syntheses of silole derivatives and nanoribbon structures with eight-membered sila-cyclic rings from dibrominated molecules at the bay and peri positions on Au(111), respectively. Their structures and electronic properties were investigated by a combination of scanning tunneling microscopy/spectroscopy and density functional theory calculations. This work demonstrates a great potential to deal with heavy group 14 elements in on-surface silicon chemistry.

Original languageEnglish
Article numbere202401027
JournalAngewandte Chemie - International Edition
Volume63
Issue number18
Early online date2024
DOIs
Publication statusPublished - 24 Apr 2024
MoE publication typeA1 Journal article-refereed

Keywords

  • density functional theory
  • nanoribbon structures
  • on-surface synthesis
  • scanning tunneling microscopy/spectroscopy
  • sila-cyclic rings

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