A synthetic manganese-calcium cluster similar to the catalyst of Photosystem II: challenges for biomimetic water oxidation

被引：13

作者：

Mousazade, Younes ^{[1
]}

Mohammadi, Mohammad Reza ^{[2
]}

Bagheri, Robabeh ^{[3
]}

Bikas, Rahman ^{[4
]}

Chernev, Petko ^{[5
,6
]}

Song, Zhenlun ^{[3
]}

Lis, Tadeusz ^{[7
]}

Siczek, Milosz ^{[7
]}

Noshiranzadeh, Nader ^{[8
]}

Mebs, Stefan ^{[5
]}

Dau, Holger ^{[8
]}

Zaharieva, Ivelina ^{[5
]}

Najafpour, Mohammad Mahdi ^{[1
,9
,10
]}

机构：

[1] Inst Adv Studies Basic Sci IASBS, Dept Chem, Zanjan 4513766731, Iran

[2] Univ Sistan & Baluchestan, Dept Phys, Zahedan 9816745845, Iran

[3] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Surface Dept, Surface Protect Res Grp, 519 Zhuangshi Rd, Ningbo 315201, Peoples R China

[4] Imam Khomeini Int Univ, Fac Sci, Dept Chem, Qazvin 3414896818, Iran

[5] Free Univ Berlin, Fachbereich Phys, Arnimallee 14, D-14195 Berlin, Germany

[6] Uppsala Univ, Dept Chem Angstromlab, Lagerhyddsvagen 1, S-75120 Uppsala, Sweden

[7] Univ Wroc Aw, Fac Chem, 14 Joliot Curie, PL-50383 Wroclaw, Poland

[8] Univ Zanjan, Fac Sci, Dept Chem, Zanjan 4537138791, Iran

[9] Inst Adv Studies Basic Sci IASBS, Ctr Climate Change & Global Warming, Zanjan 4513766731, Iran

[10] Inst Adv Studies Basic Sci IASBS, Res Ctr Basic Sci & Modern Technol RBST, Zanjan 4513766731, Iran

来源：

DALTON TRANSACTIONS | 2020年 / 49卷 / 17期

关键词：

OXYGEN-EVOLVING COMPLEX; OXIDIZING COMPLEX; SOLAR-ENERGY; MODEL; OXIDE; PHOTOSYNTHESIS; PHOTOLYSIS; INSIGHTS;

D O I：

10.1039/d0dt00536c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Herein, we report the synthesis, characterization, crystal structure, density functional theory calculations, and water-oxidizing activity of a pivalate Mn-Ca cluster. All of the manganese atoms in the cluster are Mn(iv) ions and have a distorted MnO6 octahedral geometry. Three Mn(iv) ions together with a Ca(ii) ion and four-oxido groups form a cubic Mn3CaO4 unit which is similar to the Mn3CaO4 cluster in the water-oxidizing complex of Photosystem II. Using scanning electron microscopy, transmission electron microscopy, energy dispersive spectrometry, extended X-ray absorption spectroscopy, chronoamperometry, and electrochemical methods, a conversion into nano-sized Mn-oxide is observed for the cluster in the water-oxidation reaction.

引用

页码：5597 / 5605

页数：9

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