On-Surface Synthesis of Unsaturated Hydrocarbon Chains through C-S Activation.
core-level photoemission spectroscopy
homocoupling
polyacetylene
radical coupling reaction
scanning probe microscopy
thiophene
Journal
Chemistry (Weinheim an der Bergstrasse, Germany)
ISSN: 1521-3765
Titre abrégé: Chemistry
Pays: Germany
ID NLM: 9513783
Informations de publication
Date de publication:
22 Aug 2022
22 Aug 2022
Historique:
received:
15
03
2022
pubmed:
4
6
2022
medline:
4
6
2022
entrez:
3
6
2022
Statut:
ppublish
Résumé
We use an on-surface synthesis approach to drive the homocoupling reaction of a simple dithiophenyl-functionalized precursor on Cu(111). The C-S activation reaction is initiated at low annealing temperature and yields unsaturated hydrocarbon chains interconnected in a fully conjugated reticulated network. High-resolution atomic force microscopy imaging reveals the opening of the thiophenyl rings and the presence of trans- and cis-oligoacetylene chains as well as pentalene units. The chemical transformations were studied by C 1s and S 2p core level photoemission spectroscopy and supported by theoretical calculations. At higher annealing temperature, additional cyclization reactions take place, leading to the formation of small graphene flakes.
Identifiants
pubmed: 35657383
doi: 10.1002/chem.202200809
pmc: PMC9540368
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e202200809Subventions
Organisme : Agence Nationale de la Recherche
ID : ANR-17-CE08-0010
Organisme : Horizon 2020 Framework Programme
ID : 730872
Organisme : European Research Council
ID : 834402
Pays : International
Informations de copyright
© 2022 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH.
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