Creation of a novel solid surface as a model photosynthetic system. II: Application of the LB and self-assembly methods to fixation of a light-driven polypyridyl Ru(II) complex

A novel solid surface is created by being modified with a monolayer of a bi-functional Ru(II) complex. Modification is performed by the combination of Langmuir–Blodgett (LB) and self-assembly methods. At the first step of the method, an ITO electrode is modified with a single layered clay film by th...

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Bibliographic Details
Published in:Electrochemistry communications 2004, Vol.6 (1), p.61-65
Main Authors: He, Jun-Xiang, Yamagishi, Akihiko, Iwao, Masami, Abe, Yuriko, Umemura, Yasushi
Format: Article
Language:English
Subjects:
Bi-functional Ru(II) complex
Chemistry
Clay minerals
Electrochemistry
Electrodes: preparations and properties
Exact sciences and technology
General and physical chemistry
Modified electrode
Other electrodes
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Summary:A novel solid surface is created by being modified with a monolayer of a bi-functional Ru(II) complex. Modification is performed by the combination of Langmuir–Blodgett (LB) and self-assembly methods. At the first step of the method, an ITO electrode is modified with a single layered clay film by the LB method. Thereafter a water-soluble Ru(II) complex, [Ru(bpy) 2(m-PhOH)] 2+ (m-PhOH=4-methyl-4 ′(CONH-phenol)-2,2 ′-bipyridyl), was self-assembled onto the electrode simply by being immersed in its aqueous solution. Cyclic voltammogram in a 0.1 M NaClO 4 solution showed two centered oxidation waves at 710 and 1200 mV (vs Ag/AgCl) due to a –CONH-phenol group and a central Ru(II) ion, respectively.
ISSN:1388-2481
1873-1902
DOI:10.1016/j.elecom.2003.10.017