Butterfly-Shaped Pentanuclear Dysprosium Single-Molecule Magnets
文献类型：期刊论文
| 作者 | Tian HQ ; Zhao L ; Lin HF ; Tang JK ; Li GS |
| 刊名 | chemistry-a european journal
 |
| 出版日期 | 2013 |
| 卷号 | 19期号:39页码:13235-13241 |
| 关键词 | LANTHANIDE COMPLEXES EXCHANGE INTERACTION ANISOTROPIC BARRIER TERBIUM COMPLEX ION LN BEHAVIOR RELAXATION LIGAND MAGNETIZATION SPIN |
| ISSN号 | 0947-6539 |
| 通讯作者 | tang jk |
| 中文摘要 | two new butterfly-shaped pentanuclear dysprosium(iii) clusters, [dy-5((3)-oh)(3)(opch)(6)(h2o)(3)]3meoh 9h(2)o (1) and [dy-5((3)-oh)(3)(hopch)(2)(opch)(4)(meoh)(h2o)(2)](clo4)(2) 6meoh4h(2)o (2), which were based on the heterodonor-chelating ligand o-vanillin pyrazine acylhydrazone (h(2)opch), have been successfully synthesized by applying different reaction conditions. single-crystal x-ray diffraction analysis revealed that the butterfly-shaped cores in both compounds were comparable. however, their magnetic properties were drastically different. indeed, compound 1 showed dual slow-relaxation processes with a transition between them that corresponded to energy gaps () of 8.1 and 37.9k and pre-exponential factors ((0)) of 1.7x10(-5) and 9.7x10(-8)s for the low- and high-temperature domains, respectively, whilst only a single relaxation process was noted for compound 2 (=197k, (0)=3.2x10(-9)s). these significant disparities are most likely due to the versatile coordination of the h(2)opch ligands with particular keto-enol tautomerism, which alters the strength of the local crystal field and, hence, the nature or direction of the easy axes of anisotropic dysprosium ions. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000324579600044 |
| 公开日期 | 2014-04-15 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/49600]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Tian HQ,Zhao L,Lin HF,et al. Butterfly-Shaped Pentanuclear Dysprosium Single-Molecule Magnets[J]. chemistry-a european journal,2013,19(39):13235-13241. |
| APA | Tian HQ,Zhao L,Lin HF,Tang JK,&Li GS.(2013).Butterfly-Shaped Pentanuclear Dysprosium Single-Molecule Magnets.chemistry-a european journal,19(39),13235-13241. |
| MLA | Tian HQ,et al."Butterfly-Shaped Pentanuclear Dysprosium Single-Molecule Magnets".chemistry-a european journal 19.39(2013):13235-13241. |
入库方式： OAI收割
来源：长春应用化学研究所
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