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

被引：9
|
作者：
Yatabe, Takeshi [1 ,2 ]
Kikkawa, Mitsuhiro [1 ,2 ]
Matsumoto, Takahiro [1 ,2 ]
Nakai, Hidetaka [2 ]
Kaneko, Kenji [3 ]
Ogo, Seiji [1 ,2 ,4 ]
机构：
[1] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, Fukuoka 8190395, Japan
[2] Kyushu Univ, Grad Sch Engn, Dept Chem & Biochem, Nishi Ku, Fukuoka 8190395, Japan
[3] Kyushu Univ, Fac Engn, Dept Mat Sci & Engn, Nishi Ku, Fukuoka 8190395, Japan
[4] Japan Sci & Technol Agcy JST, CREST, Kawaguchi, Saitama 3320012, Japan
来源：
DALTON TRANSACTIONS | 2014年 / 43卷 / 08期
关键词：
PHOTOSYSTEM-II; CRYSTAL-STRUCTURE; MANGANESE(IV; IV); COMPLEXES; CLAY COMPOUNDS; PHOTOINHIBITION; PHOTOREDUCTION; PHOTODAMAGE; CATALYSTS; CLUSTER; BENZOQUINONES;
D O I：
10.1039/c3dt52846d
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
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 O-2 and (ii) a recovery loop begins with photoinhibition of the dimanganese complex but then uses O-2 to reactivate the manganese centre. The net result is a catalytic water-oxidation catalyst that can use self-generated O-2 for recovery.
引用
收藏
页码：3063 / 3071
页数：9
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