Berlin 2008 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 64: Metal Substrates: Adsorption of Organic/Bio Molecules IV

O 64.6: Vortrag

Donnerstag, 28. Februar 2008, 12:30–12:45, HE 101

Conformational study of FeTPC molecules on Cu(111) with STM — •Stefan Kuck, Germar Hoffmann, and Roland Wiesendanger — Institute of Applied Physics, Jungiusstr. 9a, 20355 Hamburg

When porphyrin molecules are studied on surfaces, an important issue is the conformation of the molecule. So far, it was not possible to determine with STM whether the molecules are in a saddle or in a planar geometry. To answer this question, we introduce corroles as a new class of molecules in the field of STM studies, which are related to porphyrins but with reduced symmetry. Here, we address Iron-Tri-Phenyl Corrole (FeTPC) molecules deposited on the Cu(111) surface with scanning tunneling microscopy. We will discuss the bending of the corrole core into the saddle conformation and the configuration of the phenyl legs in contact with the metallic substrate.