Dresden 2014 – scientific programme

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O: Fachverband Oberflächenphysik

O 62: Posters: Surface Reactions and Dynamics, Nanostructures

O 62.28: Poster

Wednesday, April 2, 2014, 17:30–21:00, P1

Self-assembled molecular triangles with a central pillar unit pointing towards the third dimension — •Stefan-Sven Jester, Anna Jochemich, Eva Sigmund, and Sigurd Höger — Universität Bonn, Kekulé-Institut für Organische Chemie und Biochemie, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany

Shape-persistent molecular triangles with an intraannular unit pointing towards the third dimension are designed, synthesized and investigated. The molecules self-assemble at the solution/solid interface on HOPG to form highly ordered patterns. In situ scanning tunneling microscopy gives an insight into the driving forces for supramolecular self-assembly. The molecular design and substitution pattern is consistent with our previously published set of molecular triangles, squares, pentagons, and hexagons.[1] Consequent with our expectation, the intraannular substituted triangular molecules mix with the hexagons to form periodic cocrystals. [1] S.-S. Jester, E. Sigmund, S. Höger J. Am. Chem. Soc. 2011, 133, 11062.