Impact of the reaction pathway on the final product in on-surface synthesis

Antje Kutz, Md Taibur Rahman, Ville Haapasilta, Chiara Venturini, Ralf Bechstein, André Gordon, Adam S. Foster, Angelika Kühnle*

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

Abstrakti

On-surface synthesis provides a very promising strategy for creating stable functional structures on surfaces. In the past, classical reactions known from solution synthesis have been successfully transferred onto a surface. Due to the presence of the surface, on-surface synthesis provides the potential of directing the reaction pathway in a manner that might not be accessible in classical solution synthesis. In this work, we present evidence for an acetylene polymerization from a terminal alkyne monomer deposited onto calcite (10.4). Strikingly, although the dimer forms on the surface as well, we find no indication for diacetylene polymerization. This is in sharp contrast to what is observed when directly depositing the dimers on the surface. The different pathways are linked to the specific arrangement of the dimers on the surface. When forming stripes along the [-4-21] direction, the diacetylene polymerization is prohibited, while when arranged in stripes aligned along the [010] direction, the dimers can undergo diacetylene polymerization. Our work thus constitutes a demonstration for controlling the specific reaction pathway in on-surface synthesis by the presence of the surface.

AlkuperäiskieliEnglanti
Sivut6109-6114
Sivumäärä6
JulkaisuPhysical Chemistry Chemical Physics
Vuosikerta22
Numero11
DOI - pysyväislinkit
TilaJulkaistu - 3 helmikuuta 2020
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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    Kutz, A., Rahman, M. T., Haapasilta, V., Venturini, C., Bechstein, R., Gordon, A., ... Kühnle, A. (2020). Impact of the reaction pathway on the final product in on-surface synthesis. Physical Chemistry Chemical Physics, 22(11), 6109-6114. https://doi.org/10.1039/c9cp06044h