Supramolecular Construction of Covalently and Noncovalently-linked Photoinduced Electron Transfer Systems in Myoglobin Scaffold

Hiroshi TAKASHIMA; Yi-Zhen HU; Katsuhiko SANO; Seiji SHINKAI; Shigero OISHI; Itaru HAMACHI

doi:10.5796/electrochemistry.69.942

Communications

Supramolecular Construction of Covalently and Noncovalently-linked Photoinduced Electron Transfer Systems in Myoglobin Scaffold

Hiroshi TAKASHIMA, Yi-Zhen HU, Katsuhiko SANO, Seiji SHINKAI, Shigero OISHI, Itaru HAMACHI

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Keywords: Photoinduced Electron Transfer, Self-assembled Redox System, Myoglobin, Cyclodextrin

JOURNAL FREE ACCESS

2001 Volume 69 Issue 12 Pages 942-945

DOI https://doi.org/10.5796/electrochemistry.69.942

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Abstract

Zinc Protoporphyrin IX-based compound 1 connected with ruthenium tris-bipyridine and β-cyclodextrin and its reconstituted Myoglobin(Mb(l)) were newly synthesized to construct covalently and non-covalently linked electron transfer reactions using semisynthetic protein. In the presence of an electron acceptor such as anthraquinone, Mb(1) can bind it on the surface and form a self-assembled donor-sensitizer-acceptor triad. The final charge separated state via stepwise electron transfer was generated after photo-excitation of the ruthenium complex by laser flash photolysis.

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