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Sequential nested assembly at the liquid/solid interface

Karamzadeh, Baharan; Eaton, Thomas; Torres, David Muñoz; Cebula, Izabela; Mayor, Marcel 1; Buck, Manfred
1 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Studying the stepwise assembly of a four component hybrid structure on Au(111)/mica, the pores of a hydrogen bonded bimolecular network of 3,4,9,10-perylenetetracarboxylic diimide (PTCDI) and 1,3,5-triazine-2,4,6-triamine (melamine) were partitioned by three and four-armed molecules based on oligo([biphenyl]-4-ylethynyl)benzene, followed by the templated adsorption of either C60 fullerene or adamantane thiol molecules. The characterisation by ambient scanning tunneling microscopy (STM) reveals that the pore modifiers exhibit dynamics which pronouncedly depend on the molecular structure. The three-armed molecule 1,3,5-tris([1,1′-biphenyl]-4-ylethynyl)benzene (3BPEB) switches between two symmetry equivalent configurations on a time scale fast compared to the temporal resolution of the STM. Derivatisation of 3BPEB by hydroxyl groups substantially reduces the switching rate. For the four-armed molecule configurational changes are observed only occasionally. The observation of isolated fullerenes and small clusters of adamantane thiol molecules, which are arranged in a characteristic fashion, reveals the templating effect of the trimolecular supramolecular network. ... mehr

DOI: 10.1039/C7FD00115K
Zitationen: 9
Web of Science
Zitationen: 7
Zitationen: 9
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 26.04.2017
Sprache Englisch
Identifikator ISSN: 0301-7249, 1359-6640, 1364-5498
KITopen-ID: 1000076135
HGF-Programm 43.21.04 (POF III, LK 01) Molecular Engineering
Erschienen in Faraday discussions
Verlag Royal Society of Chemistry (RSC)
Band 204
Seiten 173–190
Nachgewiesen in Web of Science
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