Implications of remote water molecules on the electron transfer coupled processes at a nonporphyrinic Mn(III)-hydroxido complex

被引:17
作者
El Ghachtouli, Sanae [1 ,2 ]
Lassalle-Kaiser, Benedikt [2 ,3 ]
Dorlet, Pierre [4 ]
Guillot, Regis [2 ]
Anxolabehere-Mallart, Elodie [1 ]
Costentin, Cyrille [1 ]
Aukauloo, Ally [2 ,5 ]
机构
[1] Univ Paris Diderot, Electrochim Mol Lab, UMR CNRS P7 7591, F-75205 Paris 13, France
[2] Univ Paris 11, ICMMO, UMR 8182, F-91405 Orsay, France
[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA
[4] CNRS, URA 2096, Lab Stress Oxydant & Detoxicat, F-91191 Gif Sur Yvette, France
[5] CEA, IBiTec S, SM SB2, F-91191 Gif Sur Yvette, France
关键词
PHOTOSYSTEM-II; MONONUCLEAR; ACTIVATION; OXIDATION; DESIGN; MANGANESE(III); CHEMISTRY; DINUCLEAR; DIOXYGEN; OXYGEN;
D O I
10.1039/c1ee01078f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Electrochemical studies of a new Mn(III)(OH) complex clearly evidence that the presence of outer spheres water molecules is essential for the reversibility of Mn-III/II and Mn-IV/III redox processes. In the Mn-III/II case we found an isotope effect for D2O and (OH2)-O-18 allowing us to propose a mechanism for H2O/HO- ligand exchange coupled electron transfer activation of Mn-OH2
引用
收藏
页码:2041 / 2044
页数:4
相关论文
共 28 条
[1]   Photosynthetic energy conversion: natural and artificial [J].
Barber, James .
CHEMICAL SOCIETY REVIEWS, 2009, 38 (01) :185-196
[2]   Electronic design criteria for O-O bond formation via metal-oxo complexes [J].
Betley, Theodore A. ;
Wu, Qin ;
Van Voorhis, Troy ;
Nocera, Daniel G. .
INORGANIC CHEMISTRY, 2008, 47 (06) :1849-1861
[3]   Bioinspired hydrogen bond motifs in ligand design: The role of noncovalent interactions in metal ion mediated activation of dioxygen [J].
Borovik, AS .
ACCOUNTS OF CHEMICAL RESEARCH, 2005, 38 (01) :54-61
[4]   A new pentadentate ligand forms both a Di- and a mononuclear MnII complex:: Electrochemical, spectroscopic and superoxide dismutase activity studies [J].
Cisnetti, Federico ;
Lefevre, Anne-Sophie ;
Guillot, Regis ;
Lambert, Francois ;
Blain, Guillaume ;
Anxolabehere-Mallart, Elodie ;
Policar, Clotilde .
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2007, (28) :4472-4480
[5]  
Collings AF, 2005, ARTIFICIAL PHOTOSYNTHESIS: FROM BASIC BIOLOGY TO INDUSTRIAL APPLICATION, P1, DOI 10.1002/3527606742
[6]   Electro- and Photoinduced Formation and Transformation of Oxido-Bridged Multinuclear Mn Complexes [J].
Collomb, Marie-Noelle ;
Deronzier, Alain .
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2009, (14) :2025-2046
[7]   Electrochemical approach to the mechanistic study of proton-coupled electron transfer [J].
Costentin, Cyrille .
CHEMICAL REVIEWS, 2008, 108 (07) :2145-2179
[8]   Near-infrared light activated release of nitric oxide from designed photoactive manganese nitrosyls: Strategy, design, and potential as NO donors [J].
Eroy-Reveles, Aura A. ;
Leung, Yvonne ;
Beavers, Christine M. ;
Olmstead, Marilyn M. ;
Mascharak, Pradip K. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (13) :4447-4458
[9]   C-H activation by a mononuclear manganese(III) hydroxide complex: Synthesis and characterization of a manganese-lipoxygenase mimic? [J].
Goldsmith, CR ;
Cole, AP ;
Stack, TDP .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (27) :9904-9912
[10]   18O-Water exchange in photosystem II:: Substrate binding and intermediates of the water splitting cycle [J].
Hillier, Warwick ;
Wydrzynski, Tom .
COORDINATION CHEMISTRY REVIEWS, 2008, 252 (3-4) :306-317