Non-contact atomic force microscopy observation of 5-(4-methylthiophenyl)-10,15,20-tris(3,5-di- t-butylphenyl)porphyrin molecules deposited on Au(1 1 1) surface

The structure and conformation of 5-(4-methylthiophenyl)-10,15,20-tris(3,5-di- t-butylphenyl)porphyrin (MSTBPP) molecules deposited on an Au(1 1 1) reconstructed surface was investigated using non-contact atomic force microscopy. A molecular scale image of the structure of MSTBPP was clearly obtaine...

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Bibliographic Details
Published in:Thin solid films 2003-08, Vol.438, p.56-60
Main Authors: Tanaka, Shukichi, Suzuki, Hitoshi, Kamikado, Toshiya, Mashiko, Shinro
Format: Article
Language:English
Subjects:
Conformation
Methylthiophenyl
MSTBPP
Non-contact atomic force microscopy
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Summary:The structure and conformation of 5-(4-methylthiophenyl)-10,15,20-tris(3,5-di- t-butylphenyl)porphyrin (MSTBPP) molecules deposited on an Au(1 1 1) reconstructed surface was investigated using non-contact atomic force microscopy. A molecular scale image of the structure of MSTBPP was clearly obtained using frequency modulation feedback mode. It was found that the methylthiophenyl leg of the molecule has a strong attractive force to the Au(1 1 1) substrate and works as an anchor. This force seems to dominate the relative locations of the molecules to the substrate.
ISSN:0040-6090
1879-2731
DOI:10.1016/S0040-6090(03)00758-2