The first heterometallic Mn-Ca cluster containing exclusively Mn(III) centers

被引:30
作者
Kotzabasaki, Vasiliki [1 ]
Siczek, Milosz [2 ]
Lis, Tadeusz [2 ]
Milios, Constantinos J. [1 ]
机构
[1] Univ Crete, Dept Chem, Voutes 71003, Herakleion, Greece
[2] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland
关键词
Oximate manganese calcium complexes; Heterometallic complexes; Photosystem II; Magnetic properties; OXYGEN-EVOLVING COMPLEX; TARGETED STRUCTURAL DISTORTION; PHOTOSYNTHETIC WATER OXIDATION; SINGLE-MOLECULE MAGNETS; PHOTOSYSTEM-II; ELECTRON-TRANSFER; MANGANESE; CHEMISTRY; MECHANISM; RELEVANCE;
D O I
10.1016/j.inoche.2010.10.025
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reaction of Mn(ClO4)(2)center dot 6H(2)O with Ca(prop)(2) and Me-saOH(2) in MeCN yields the heterometallic polymeric complex {[(Mn6Ca2O2)-Ca-III(Me-saO)(6)(ProP)(6) (H2O)(2)]center dot 2MeCN center dot 0.95H(2)O}(n) (1) (prop = propionate; Me-saOH(2) = 2-hydroxyphenylethanone oxime). Complex 1 consists of hexanuclear centrosymmetric [(Mn6O2)-O-III(Me-saO)(6)](2+) units bridged by propionate calcium [Ca-2(prop)(6)](2-) centrosymmetric dimers. Magnetic measurements show that the hexanuclear magnetic core has an S = 4 ground state. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:213 / 216
页数:4
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