Cyano-Functionalized Triarylamines on Au(111): Competing Intermolecular versus Molecule/Substrate Interactions

Gottardi S, Muller K, Moreno-Lopez JC, Yildirim H, Meinhardt U, Kivala M, Kara A, Stohr M (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Advanced Materials Interfaces WILEY-VCH Verlag GmbH & Co. KGaA

Book Volume: 1

Article Number: 1300025

Journal Issue: 1

DOI: 10.1002/admi.201300025

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.

Authors with CRIS profile

Ute Meinhardt Lehrstuhl für Organische Chemie I Milan Kivala Lehrstuhl für Organische Chemie I

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials

Involved external institutions

University of Groningen / Rijksuniversiteit Groningen NL Netherlands (NL) University of Central Florida (UCF) US United States (USA) (US)

How to cite

APA:

Gottardi, S., Muller, K., Moreno-Lopez, J.C., Yildirim, H., Meinhardt, U., Kivala, M.,... Stohr, M. (2014). Cyano-Functionalized Triarylamines on Au(111): Competing Intermolecular versus Molecule/Substrate Interactions. Advanced Materials Interfaces, 1(1). https://dx.doi.org/10.1002/admi.201300025

MLA:

Gottardi, Stefano, et al. "Cyano-Functionalized Triarylamines on Au(111): Competing Intermolecular versus Molecule/Substrate Interactions." Advanced Materials Interfaces 1.1 (2014).

BibTeX: Download