Island formation and manipulation of prochiral azobenzene derivatives on Au(111)

Based on previous work with very similar azobenzene derivatives, this study of para-TBA (2,2′,5,5′-tetra-tert-butylazobenzene) molecules aims to identify single intact molecules and investigate their adsorption behavior on a Au(111) surface. The molecules are found to be mobile on the surface at the...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2012-09, Vol.24 (35), p.354013-354013
Main Authors: Selvanathan, Sofia, Peters, Maike V, Hecht, Stefan, Grill, Leonhard
Format: Article
Language:English
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Summary:Based on previous work with very similar azobenzene derivatives, this study of para-TBA (2,2′,5,5′-tetra-tert-butylazobenzene) molecules aims to identify single intact molecules and investigate their adsorption behavior on a Au(111) surface. The molecules are found to be mobile on the surface at the deposition temperature, leading to highly ordered and enantiomerically pure molecular islands. Voltage pulses between the surface and the tip of a scanning tunneling microscope are used to change the chirality of the adsorbate molecules. On the Cu(111) surface instead, single molecules are found on the terraces, which points to a stronger molecule-substrate interaction.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/24/35/354013