Details

Autor(en) / Beteiligte

• Kalashnyk, Nataliya
• Daher Mansour, Michel
• Pijeat, Joffrey
• Plamont, Rémi
• Bouju, Xavier
• Balaban, Teodor Silviu
• Campidelli, Stéphane
• Masson, Laurence
• Clair, Sylvain

Titel

Edge-On Self-Assembly of Tetra-bromoanthracenyl-porphyrin on Silver Surfaces

Ist Teil von

• Journal of physical chemistry. C, 2020-10, Vol.124 (40), p.22137-22142

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2020

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Molecular self-assembly on surfaces is driven by the range of interactions between the molecules themselves and the substrate. Generally, a face-on structure is favored for aromatic molecules lying flat on the surface. Here, we report on the supramolecular self-assembly of 5,10,15,20-tetrakis­(10-bromoanthracen-9-yl)­porphyrin on the Ag(111) and Ag(110) surfaces. Well-ordered molecular chains were observed by room-temperature scanning tunneling microscopy on both surfaces. The relatively small size of the unit cell revealed an edge-on configuration of the porphyrin macrocycles, that is, perpendicular to the surface plane, as confirmed by molecular mechanics calculations. Distinct intermolecular interactions were found on the two surfaces, providing different molecular chain orientations on Ag(111) and Ag(110).