Issue 8, 2014
From the journal:

Dalton Transactions

A model for the water-oxidation and recovery systems of the oxygen-evolving complex†

Takeshi Yatabe,ab   Mitsuhiro Kikkawa,ab   Takahiro Matsumoto,ab   Hidetaka Nakai,b   Kenji Kanekoc  and  Seiji Ogo*abd  

* Corresponding authors

a International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
E-mail: ogotcm@mail.cstm.kyushu-u.ac.jp
Fax: +81-92-802-2823
Tel: +81-92-802-2818

b Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan

c Department of Materials Science and Engineering, Faculty of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan

d Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Kawaguchi Center Building, 4-1-8 Honcho, Kawaguchi-shi, Saitama 332-0012, Japan

Abstract

We propose a model for the water-oxidation and recovery systems of the oxygen-evolving complex (OEC) of the photosystem II (PSII) enzyme. The whole system is constructed from two catalytic cycles, conducted as a tandem reaction: (i) a water-oxidation loop uses cerium(IV) ammonium nitrate as an oxidant to activate a dimanganese complex for water-oxidation and thereby liberate a molecule of O2 and (ii) a recovery loop begins with photoinhibition of the dimanganese complex but then uses O2 to reactivate the manganese centre. The net result is a catalytic water-oxidation catalyst that can use self-generated O2 for recovery.

Graphical abstract: A model for the water-oxidation and recovery systems of the oxygen-evolving complex

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Article information

DOI
https://doi.org/10.1039/C3DT52846D
Article type
Paper
Submitted
10 Oct 2013
Accepted
24 Nov 2013
First published
10 Dec 2013

Dalton Trans., 2014,43, 3063-3071

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A model for the water-oxidation and recovery systems of the oxygen-evolving complex

T. Yatabe, M. Kikkawa, T. Matsumoto, H. Nakai, K. Kaneko and S. Ogo, Dalton Trans., 2014, 43, 3063 DOI: 10.1039/C3DT52846D

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