| 脱水对六核锰单分子磁体磁性的影响 |
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| 引用本文： | 刘雪霆,李建新,费 霞,武其亮,杨 波.脱水对六核锰单分子磁体磁性的影响[J].无机化学学报,2012,28(6):1234-1238. |
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| 作者姓名： | 刘雪霆 李建新 费 霞 武其亮 杨 波 |
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| 作者单位： | 合肥工业大学化学工程学院,可控化学与材料化工安徽省重点实验室,合肥230009 |
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| 基金项目： | 教育部留学回国人员科研启动基金，安徽高校省级自然科学研究重点 |
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| 摘 要： | 以水杨醛肟和Mn(CH3COO)2.4H2O为原料,合成了一个新的六核锰簇合物Mn6O2(CH3COO)2(salox)6(H2O)4].10H2O(salox2-表示负二价的水杨醛肟),对其进行了单晶X射线衍射分析及脱水前后样品的直流和交流磁性测试。结果表明,该簇合物是一个反铁磁性单分子磁体,脱水使得六核锰簇内的反铁磁作用增强,磁弛豫能垒下降,但簇合物仍保持单分子磁体的性质。
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| 关 键 词： | 六核锰 晶体结构 脱水 单分子磁体 |
Effect of Dehydration on the Magnetic Properties of Hexanuclear Manganese Single-Molecule Magnet |
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| LIU Xue-Ting,LI Jian-Xin,FEI Xi,WU Qi-Liang and YANG Bo.Effect of Dehydration on the Magnetic Properties of Hexanuclear Manganese Single-Molecule Magnet[J].Chinese Journal of Inorganic Chemistry,2012,28(6):1234-1238. |
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| Authors: | LIU Xue-Ting LI Jian-Xin FEI Xi WU Qi-Liang and YANG Bo |
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| Institution: | School of Chemical Engineering, Hefei University of Technology, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering, Hefei 230009, China,School of Chemical Engineering, Hefei University of Technology, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering, Hefei 230009, China,School of Chemical Engineering, Hefei University of Technology, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering, Hefei 230009, China,School of Chemical Engineering, Hefei University of Technology, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering, Hefei 230009, China and School of Chemical Engineering, Hefei University of Technology, Anhui Key Laboratory of Controllable Chemical Reaction & Material Chemical Engineering, Hefei 230009, China |
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| Abstract: | A hexanuclear manganese cluster Mn6O2(CH3COO)2(salox)6(H2O)4]·10H2O (salox2- is the dianion of salicylaldoxime) was synthesized using salicylaldoxime and manganese acetate as raw materials, and its X-ray single crystal diffraction analysis and dc and ac magnetic measurements for the samples before and after dehydration were performed. The results show that, the cluster is an anti-ferromagnetic single-molecule magnet, and dehydration makes intra-cluster anti-ferromagnetic interactions and the energy barrier for the relaxation of the magnetization become stronger and decrease, respectively whereas the cluster retains single-molecule-magnet-like behavior. CCDC: 822907. |
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| Keywords: | hexanuclear manganese crystal structure dehydration single-molecule magnet |
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