Issue 46, 2022

Molecular self-assembly of DBBA on Au(111) at room temperature

Abstract

We have investigated the self-assembly of the graphene nanoribbon molecular precursor 10,10'-dibromo-9,9'-bianthryl (DBBA) on Au(111) with frequency modulation scanning force microscopy (FM-SFM) at room temperature combined with ab initio calculations. For low molecular coverages, the molecules aggregate along the substrate herringbone reconstruction main directions while remaining mobile. At intermediate coverage, two phases coexist, zigzag stripes of monomer chains and decorated herringbones. For high coverage, the molecules assemble in a dimer-striped phase. The adsorption behaviour of DBBA molecules and their interactions are discussed and compared with the results from ab initio calculations.

Graphical abstract: Molecular self-assembly of DBBA on Au(111) at room temperature

Supplementary files

Article information

Article type
Paper
Submitted
19 May 2022
Accepted
28 Oct 2022
First published
11 Nov 2022

Phys. Chem. Chem. Phys., 2022,24, 28371-28380

Molecular self-assembly of DBBA on Au(111) at room temperature

S. Schneider, K. Bytyqi, S. Kohaut, P. Bügel, B. Weinschenk, M. Marz, A. Kimouche, K. Fink and R. Hoffmann-Vogel, Phys. Chem. Chem. Phys., 2022, 24, 28371 DOI: 10.1039/D2CP02268K

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