Electrochemical and quartz-crystal-microbalance transduction of light-controlled supramolecular interactions at monolayer-functionalized electrodes

Journal of the American Chemical Society

Volumn 118, Issue 19, 1996, Pages 4717-4718

  Marx Tibbon, Sharon ^a   Ben Dov, Iddo ^a   Willner, Itamar ^a  

^a HEBREW UNIVERSITY OF JERUSALEM   (Israel)

Author keywords

[No Author keywords available]

Indexed keywords

EOSIN;

ARTICLE; ELECTROCHEMISTRY; ELECTRON TRANSPORT;

EID: 0029952280     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja960172p     Document Type: Article

References (20)

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14. Willner, I.; Eichen, Y.; Rabinovitz, M.; Hoffman, R.; Cohen, S. J. Am. Chem. Soc. 1992, 114, 637.
15. Willner, I.; Marx, S.: Eichen, Y. Angen. Chem., Inc. Ed. Engl. 1992, 31, 1243.
16. Cohen, Y.; Levi, S.; Rubin, S.; Willner, L J. Electroanal. Chem. 1996, in press.
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18. 2(δmJA) was applied.
19. -6 M) at cysteic acid-, cystamine-, or mercaptoethanol-modified Au-electrodes were similar and resemble the cyclic voltammograms of 1a or 1b at a bare electrode. These results suggest that electrostatic or hydrophobic interactions cannot account for the different association features of 1a or 1b to the eosin monolayer. The eosin monolayer-modified electrode reveals, however, the concentration effect on N,N' -dimethyl-4,4×-bipyndinium (methyl viologen) as compared to a bare Au-electrode. This indicates that association of 1a or 1b to the eosin monolayer electrode results from a specific interaction between the xanthene dye and the bipyridinium units.
20. -5 M) did not yield any noticeable frequency changes (δf = ±2 Hz), indicating that no adsorption of 1a or 1b to the bare crystal occurs.