Regensburg 2019 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

O: Fachverband Oberflächenphysik

O 5: Nanostructures at Surfaces I: Organics

O 5.6: Talk

Monday, April 1, 2019, 11:45–12:00, H15

Self-assembled monolayers of shape-persistent macrocycles on graphite: Coadsorption with fullerene derivatives — •Joshua Bahr, Annemarie Meyer, Tristan Keller, Sigurd Höger, and Stefan-Sven Jester — Kekulé-Institut für Organische Chemie und Biochemie der Rheinischen Friedrich-Wilhelms-Universität Bonn, Bonn, Deutschland

Shape-persistent arylene-alkynylene based macrocycles form self-assembled monolayers at the solid/liquid interface of highly oriented pyrolytic graphite and 1-phenyloctane. A flexible alkoxy side chain periphery increases the solubility of the macrocyclic species in common organic solvents, and mediates its assembly into highly robust 2D networks on the solid template. In the presence of fullerenes or derivatives thereof (providing - again - increased solubility), uniform domains containing both species are formed.[1] In situ-STM is used to gather insights into these 2D nanoscale systems via submolecularly resolved images. This work focuses on understanding the interplay between the macrocycle and fullerene derivative regarding the expected binding sites. [1] G.-B. Pan, X.-H. Cheng, S. Höger, W. Freyland, J. Am. Chem. Soc. 2006, 128, 4218-4219.