Diacetylene Linked Anthracene Oligomers Synthesized by One-Shot Homocoupling of Trimethylsilyl on Cu(111)

Shigeki Kawai, Ondrej Krejci, Adam Foster, Rémy Pawlak, Feng Xu, Lifen Peng, Akihiro Orita, Ernst Meyer

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

89 Lataukset (Pure)

Abstrakti

On-surface chemical reaction has become a very powerful technique to conjugate small precursor molecules and several reactions have been proposed with the aim to fabricate functional nanostructures on surfaces. Here we present an unforeseen adsorption mode of 9,10-bis-((trimethylsilyl)ethynyl)anthracene on a Cu(111)surface and the resulting one-shot desilylative homocoupling of of the adsorbate by annealing at 400 K. With a combination of high-resolution atomic force microscopy and density functional theory calculations, we found that the triple bonds and silicon atoms of the monomer chemically interact with the copper surface. After the oligomerization, we discovered that the anthracene units are linked to each other via buta-1,3-diynediyl fragments while keeping the surface clean. Furthermore, the force measurement revealed the chemical nature at the center of anthracene unit.
AlkuperäiskieliEnglanti
Sivut8791−8797
JulkaisuACS Nano
Vuosikerta12
Numero8
DOI - pysyväislinkit
TilaJulkaistu - 7 elokuuta 2018
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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