Regensburg 2004 – wissenschaftliches Programm
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O: Oberflächenphysik
O 28: Postersitzung (Elektronische Struktur, Grenzfläche fest-flüssig, Halbleiteroberflächen und -grenzflächen, Magnetismus und Symposium SYXM, Methodisches, Nanostrukturen, Oberflächenreaktionen, Teilchen und Cluster, Zeitaufgelöste Spektroskopie)
O 28.38: Poster
Mittwoch, 10. März 2004, 16:00–19:00, Bereich C
Steering host-guest interactions at surfaces using tailor-made two-dimensional nanoporous coordination systems — •Sebastian Stepanow1, Magalí Lingenfelder1, Alexandre Dmitriev1, Hannes Spillmann1, Erik Delvigne2, Nian Lin1, Xiaobin Deng3, Chengzhi Cai3, Johannes V. Barth2, and Klaus Kern1,2 — 1Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, D-70569 Stuttgart — 2Institut de Physique des Nanostructures, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland — 3Department of Chemistry and Center for Materials Chemistry, University of Houston, Houston, TX 77204-5003, USA
The so-called rational design principle, i.e., synthesis of materials with predictable structures and properties from appropriate organic molecular linkers connecting to metal nodes, has recently been explored to control pore size and functionality of open three-dimensional networks. Here we demonstrate the fabrication of surface-supported metal-organic coordination networks (MOCNs) comprising tailored pore sizes and chemical functionality by the modular assembly of polytopic organic carboxylate linker molecules and iron atoms on a Cu(100) surface under ultra-high vacuum conditions. The nanocavity arrays provided can be employed to host C60 guest molecules. Temperature-controlled studies reveal at the single-molecule level how pore size and chemical functionality determine the host-guest interactions.