Title
Cyano-Functionalized Triarylamines on Au(111): Competing Intermolecular versus Molecule/Substrate Interactions
Abbreviated Journal Title
Adv. Mater. Interfaces
Keywords
SCANNING-TUNNELING-MICROSCOPY; ORGANIC COORDINATION NETWORKS; DER-WAALS; INTERACTIONS; AUGMENTED-WAVE METHOD; METAL-SURFACES; TRIANGULENE-TYPE; CHARGE-TRANSFER; HYDROGEN-BONDS; MOLECULES; CU(111); Chemistry, Multidisciplinary; Materials Science, Multidisciplinary
Abstract
The self-assembly of cyano-substituted triarylamine derivatives on Au(111) is studied with scanning tunneling microscopy and density functional theory calculations. Two different phases, each stabilized by at least two different cyano bonding motifs are observed. In the first phase, each molecule is involved in dipolar coupling and hydrogen bonding, while in the second phase, dipolar coupling, hydrogen bonding and metal-ligand interactions are present. Interestingly, the metal-ligand bond is already observed for deposition of the molecules with the sample kept at room temperature leaving the herringbone reconstruction unaffected. It is proposed that for establishing this bond, the Au atoms are slightly displaced out of the surface to bind to the cyano ligands. Despite the intact herringbone reconstruction, the Au substrate is found to considerably interact with the cyano ligands affecting the conformation and adsorption geometry, as well as leading to correlation effects on the molecular orientation.
Journal Title
Advanced Materials Interfaces
Volume
1
Issue/Number
1
Publication Date
1-1-2014
Document Type
Article
Language
English
First Page
10
WOS Identifier
ISSN
2196-7350
Recommended Citation
"Cyano-Functionalized Triarylamines on Au(111): Competing Intermolecular versus Molecule/Substrate Interactions" (2014). Faculty Bibliography 2010s. 5389.
https://stars.library.ucf.edu/facultybib2010/5389
Comments
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