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Issue 17, 2010
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Self-assembly of triazatriangulenium-based functional adlayers on Au(111) surfaces

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Abstract

Detailed scanning tunneling microscopy studies of the attachment of freestanding molecular functions to Au(111) surfaces via self-assembly of functional molecules based on triazatriangulenium platforms are presented. As shown for molecules with side chains of different length and phenyl, azobenzyl, or azobenzyl derivatives with different terminal groups (iodo, cyano, or dimethyl) as functional units, this approach allows the preparation of very stable, hexagonally ordered adlayers. The intermolecular spacings in these adlayers are independent of the attached functions with the latter being orientated perpendicular to the Au surface. Due to their open structure, adlayers of platforms with attached functional groups exhibit a tendency towards bilayer formation, which can be suppressed by derivatization with appropriate terminal groups.

Graphical abstract: Self-assembly of triazatriangulenium-based functional adlayers on Au(111) surfaces

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Article information


Submitted
02 Nov 2009
Accepted
08 Feb 2010
First published
15 Mar 2010

Phys. Chem. Chem. Phys., 2010,12, 4481-4487
Article type
Paper

Self-assembly of triazatriangulenium-based functional adlayers on Au(111) surfaces

S. Kuhn, B. Baisch, U. Jung, T. Johannsen, J. Kubitschke, R. Herges and O. Magnussen, Phys. Chem. Chem. Phys., 2010, 12, 4481
DOI: 10.1039/B922882A

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