ST = 22 [Mn10] Supertetrahedral Building-Block to Design Extended Magnetic Networks
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- 作者：Gang Wu ; Jian Huang ; Linlin Sun ; Jiaquan Bai ; Guanghua Li ; Eduard Cremades ; Eliseo Ruiz ; Rodolphe Cle虂rac ; Shilun Qiu
- 刊名：Inorganic Chemistry
- 出版年：2011
- 出版时间：September 5, 2011
- 年：2011
- 卷：50
- 期：17
- 页码：8580-8587
- 全文大小：1001K
- 年卷期：v.50,no.17(September 5, 2011)
- ISSN：1520-510X
文摘
The controlled organization of high-spin complexes, eventually single-molecule magnets, is a great challenge in molecular sciences to probe the possibility to design sophisticated magnetic systems to address a large quantity of magnetic information. The coordination chemistry is a tool of choice to make such materials. In this work, high-spin ST = 22 [Mn10] complexes, such as [MnIII6MnII4(L1)6(渭4-O)4(渭3-N3)4(CH3CN)11(H2O)]路(ClO4)2路(CH3CN)8.5 (1), have been assembled using (i) 1,3-propanediol derivatives as chelating ligands to form the [Mn10] core units and (ii) dicyanamide or azide anions as linkers to synthesize the first 2D and 3D [Mn10]-based networks: [MnIII6MnII4(L2)6(渭3-N3)4(渭4-O)4(CH3OH)4(dca)2] (2) and [MnIII6MnII4(L3)6(渭3-N3)4(渭4-O)4(N3)2]路(CH3OH)4 (3). The synthesis of these compounds is reported together with their single-crystal X-ray structures and magnetic properties supported by DFT calculations. In the reported synthetic conditions, the stability of the [Mn10] complex is remarkably good that allows us to imagine many new materials combining these high-spin moieties and other diamagnetic but also paramagnetic linkers to design for example ordered magnets.