Conformation selective assembly of carboxyphenyl substituted porphyrins on Au (111)

The selective assembly of carboxyphenyl substituted porphyrins on the Au (111) surface has been studied using scanning tunneling microscopy. We find that conformational isomers of the porphyrins are induced upon adsorption and are selectively assembled into hydrogen-bonded supramolecular clusters or...

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Bibliographic Details
Published in:The Journal of chemical physics 2004-12, Vol.121 (23), p.11993-11997
Main Authors: Yokoyama, Takashi, Kamikado, Toshiya, Yokoyama, Shiyoshi, Mashiko, Shinro
Format: Article
Language:English
Subjects:
Aluminum Silicates - chemistry
Benzoates - chemistry
Crystallization
Dimerization
Gold - chemistry
Hydrogen Bonding
Microscopy, Scanning Tunneling
Nanotechnology
Porphyrins - chemistry
Protein Conformation
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Summary:The selective assembly of carboxyphenyl substituted porphyrins on the Au (111) surface has been studied using scanning tunneling microscopy. We find that conformational isomers of the porphyrins are induced upon adsorption and are selectively assembled into hydrogen-bonded supramolecular clusters or wires on the surface. The conformation selective assembly is attributed to the coplanar intermolecular interactions between hydrogen-bonded carboxyphenyl groups.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.1819877