Designing a mononuclear Dy-III single-molecule magnet (SMM) by using a N,O,N,O-based multichelating Schiff base ligand and a -diketonate ligand
文献类型：期刊论文
| 作者 | Yin, Bing4; Zhang, Jiangwei1; Zhang, Sheng2,3; Mo, Wenjiao2; Lue, Xingqiang3 |
| 刊名 | NEW JOURNAL OF CHEMISTRY
 |
| 出版日期 | 2019-01-07 |
| 卷号 | 43期号:1页码:454-462 |
| ISSN号 | 1144-0546 |
| DOI | 10.1039/c8nj04019b |
| 通讯作者 | Zhang, Sheng(zhangsheng19890501@163.com) ; Yin, Bing(rayinyin@nwu.edu.cn) ; Zhang, Jiangwei(jwzhang@dicp.ac.cn) |
| 英文摘要 | Two mononuclear Ln(III) compounds, in which each Ln(III) is eight-coordinated, namely [Ln(L)(tmpd)] (Ln = Dy (1) or Er (2)), have been prepared using a multichelating Schiff base ligand N,N-bis(2-hydroxy-5-methyl-3-formylbenzyl)-N,N-bis-(pyridin-2-ylmethyl)ethylenediamine (H2L) and a bidentate chelating -diketonate ligand (tmpd). The local geometry of the Ln(III) ions in 1 and 2 is close to the D-2d symmetry. Notably, magnetic studies reveal that compound 2 displays no slow relaxation of magnetization while compound 1 exhibits single-molecule magnet (SMM) behaviour in the absence of a static magnetic field, with an effective energy barrier (U-eff) of 66.81 cm(-1) (96.63 K). To deeply understand their different magnetic behaviours, the magnetic anisotropy of 1 and 2 is systematically studied by ab initio calculations. There was an obvious difference between the first excited state (KD1) and the experimental U-eff in 1 because the QTM within KD0 is not completely prohibited and the residual QTM could lead to a large discrepancy between experimentally-fitted U-eff and ab initio calculated crystal field splitting. No temperature/frequency dependence is recorded in the ac susceptibility of 2 because the ab initio magnetic easy axis of 2 does not lie close to any atom of the first sphere since it tries to avoid any strong electrostatic repulsion. Moreover, the g(XY) value of KD0 of 2 is larger than that of 1 by three orders of magnitude leading to the probability of stronger QTM within KD0 of 2. |
| WOS关键词 | ION MAGNETS ; RELAXATION DYNAMICS ; BASIS-SETS ; DYSPROSIUM(III) ; SYMMETRY ; FIELD ; ANISOTROPY ; BEHAVIOR ; COMPLEXES ; SERIES |
| 资助项目 | National Natural Science Foundation of China[21703002] ; National Natural Science Foundation of China[21701168] ; National Natural Science Foundation of China[21103137] ; National Natural Science Foundation of China[21727805] ; National Natural Science Foundation of China[21673180] ; Doctoral Scientific Research Starting Foundation of Baoji University of Arts and Science[ZK2017024] ; Fund of Northwest University[334100048] ; China Postdoctoral Science Foundation[2017M610646] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000454329100052 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Doctoral Scientific Research Starting Foundation of Baoji University of Arts and Science ; Doctoral Scientific Research Starting Foundation of Baoji University of Arts and Science ; Fund of Northwest University ; Fund of Northwest University ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Doctoral Scientific Research Starting Foundation of Baoji University of Arts and Science ; Doctoral Scientific Research Starting Foundation of Baoji University of Arts and Science ; Fund of Northwest University ; Fund of Northwest University ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Doctoral Scientific Research Starting Foundation of Baoji University of Arts and Science ; Doctoral Scientific Research Starting Foundation of Baoji University of Arts and Science ; Fund of Northwest University ; Fund of Northwest University ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Doctoral Scientific Research Starting Foundation of Baoji University of Arts and Science ; Doctoral Scientific Research Starting Foundation of Baoji University of Arts and Science ; Fund of Northwest University ; Fund of Northwest University ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/166346]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Yin, Bing; Zhang, Jiangwei; Zhang, Sheng |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Baoji Univ Arts & Sci, Coll Chem & Chem Engn, Baoji 721013, Peoples R China 3.Northwest Univ, Shaanxi Key Lab Degradable Med Mat, Sch Chem Engn, Xian 710069, Shaanxi, Peoples R China 4.Northwest Univ, Coll Chem & Mat Sci, Key Lab Synthet & Nat Funct Mol Chem, Minist Educ, Xian 710069, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Bing,Zhang, Jiangwei,Zhang, Sheng,et al. Designing a mononuclear Dy-III single-molecule magnet (SMM) by using a N,O,N,O-based multichelating Schiff base ligand and a -diketonate ligand[J]. NEW JOURNAL OF CHEMISTRY,2019,43(1):454-462. |
| APA | Yin, Bing,Zhang, Jiangwei,Zhang, Sheng,Mo, Wenjiao,&Lue, Xingqiang.(2019).Designing a mononuclear Dy-III single-molecule magnet (SMM) by using a N,O,N,O-based multichelating Schiff base ligand and a -diketonate ligand.NEW JOURNAL OF CHEMISTRY,43(1),454-462. |
| MLA | Yin, Bing,et al."Designing a mononuclear Dy-III single-molecule magnet (SMM) by using a N,O,N,O-based multichelating Schiff base ligand and a -diketonate ligand".NEW JOURNAL OF CHEMISTRY 43.1(2019):454-462. |
入库方式： OAI收割
来源：大连化学物理研究所
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