Cyano-Functionalized Triarylamines On Coinage Metal Surfaces: Interplay Of Intermolecular And Molecule-Substrate Interactions
Keywords
amines; coinage metals; cyanides; noncovalent interactions; self-assembly
Abstract
The self-assembly of cyano-functionalized triarylamine derivatives on Cu(111), Ag(111) and Au(111) was studied by means of scanning tunnelling microscopy, low-energy electron diffraction, X-ray photoelectron spectroscopy and density functional theory calculations. Different bonding motifs, such as antiparallel dipolar coupling, hydrogen bonding and metal coordination, were observed. Whereas on Ag(111) only one hexagonally close-packed pattern stabilized by hydrogen bonding is observed, on Au(111) two different partially porous phases are present at submonolayer coverage, stabilized by dipolar coupling, hydrogen bonding and metal coordination. In contrast to the self-assembly on Ag(111) and Au(111), for which large islands are formed, on Cu(111), only small patches of hexagonally close-packed networks stabilized by metal coordination and areas of disordered molecules are found. The significant variety in the molecular self-assembly of the cyano-functionalized triarylamine derivatives on these coinage metal surfaces is explained by differences in molecular mobility and the subtle interplay between intermolecular and molecule-substrate interactions.
Publication Date
1-11-2016
Publication Title
Chemistry - A European Journal
Volume
22
Issue
2
Number of Pages
581-589
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1002/chem.201503205
Copyright Status
Unknown
Socpus ID
84953792073 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/84953792073
STARS Citation
Müller, Kathrin; Moreno-Lõpez, Juan Carlos; Gottardi, Stefano; Meinhardt, Ute; and Yildirim, Handan, "Cyano-Functionalized Triarylamines On Coinage Metal Surfaces: Interplay Of Intermolecular And Molecule-Substrate Interactions" (2016). Scopus Export 2015-2019. 3411.
https://stars.library.ucf.edu/scopus2015/3411