| 脱水对六核锰单分子磁体磁性的影响 | |
| Effect of Dehydration on the Magnetic Properties of Hexanuclear Manganese Single-Molecule Magnet | |
| 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。 | |
| 关键词: 六核锰 晶体结构 脱水 单分子磁体 | |
| 基金项目: | |
| 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. | |
| Keywords: hexanuclear manganese crystal structure dehydration single-molecule magnet | |
| 摘要点击次数: 1325 | |
| 全文下载次数: 1961 | |
| 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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