Tuning the Magnetic Interactions and Relaxation Dynamics of Dy-2 Single-Molecule Magnets
文献类型：期刊论文
| 作者 | Xue,Shufang; Guo,Yun-Nan; Ungur,Liviu; Tang,Jinkui; Chibotaru,Liviu F. |
| 刊名 | chemistry-a european journal
 |
| 出版日期 | 2015 |
| 卷号 | 21期号:40页码:14099-14106 |
| 关键词 | ION MAGNET LANTHANIDE COMPLEXES ANISOTROPY BARRIER GROUND-STATE BLOCKING BEHAVIOR TRIANGLES SYMMETRY EXCHANGE SYSTEMS |
| 通讯作者 | ungur,l |
| 英文摘要 | efficient modulation of single-molecule magnet (smm) behavior was realized by deliberate structural modification of the dy-2 cores of [dy-2(a'povh)(2)(oac)(2)(dmf)(2)] (1) and [zn2dy2(a'povh)(2)(oac)(6)]center dot 4h(2)o (2; h(2)a'povh=n'-[amino(pyrimidin-2-yl)methylene]-o-vanilloyl hydrazine). compound 1 having fourfold linkage between the two dysprosium ions shows high-performance smm behavior with a thermal energy barrier of 322.1 k, whereas only slow relaxation is observed for compound 2 with only twofold connection between the dysprosium ions. this remarkable discrepancy is mainly because of strong axiality in 1 due to one pronounced covalent bond, as revealed by experimental and theoretical investigations. the significant antiferromagnetic interaction derived from bis(mu(2)-o) and two acetate bridging groups was found to be crucial in leading to a nonmagnetic ground state in 1, by suppressing zero-field quantum tunneling of magnetization. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000363331200034 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/64828]  |
| 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 | Xue,Shufang,Guo,Yun-Nan,Ungur,Liviu,et al. Tuning the Magnetic Interactions and Relaxation Dynamics of Dy-2 Single-Molecule Magnets[J]. chemistry-a european journal,2015,21(40):14099-14106. |
| APA | Xue,Shufang,Guo,Yun-Nan,Ungur,Liviu,Tang,Jinkui,&Chibotaru,Liviu F..(2015).Tuning the Magnetic Interactions and Relaxation Dynamics of Dy-2 Single-Molecule Magnets.chemistry-a european journal,21(40),14099-14106. |
| MLA | Xue,Shufang,et al."Tuning the Magnetic Interactions and Relaxation Dynamics of Dy-2 Single-Molecule Magnets".chemistry-a european journal 21.40(2015):14099-14106. |
入库方式： OAI收割
来源：长春应用化学研究所
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