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 wires on the surface. The conformation selective assembly is attributed to the coplanar intermolecular interactions between hydrogen-bonded carboxyphenyl groups.
Yokoyama
Takashi
T
Graduate School of Integrated Science, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan. tyoko@yokohama-cu.ac.jp
Kamikado
Toshiya
T
Yokoyama
Shiyoshi
S
Mashiko
Shinro
S
D000538:Aluminum Silicates / Q000737:chemistry; D001565:Benzoates / Q000737:chemistry*; D003460:Crystallization; D019281:Dimerization; D006046:Gold / Q000737:chemistry*; D006860:Hydrogen Bonding; D016252:Microscopy, Scanning Tunneling; D036103:Nanotechnology; D011166:Porphyrins / Q000737:chemistry*; D011487:Protein Conformation
D000538:Aluminum Silicates; D001565:Benzoates; D011166:Porphyrins; D006046:Gold; C011934:mica