具有缓慢磁弛豫行为的单核Dy(III)和Ho(III)配合物 |
Mononuclear Dy(III) and Ho(III) Complexes with Slow Magnetic Relaxation Behavior |
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摘要: 以席夫碱配体N,N'-双(3-甲氧基亚水杨基)乙烯-1,2-二胺(H2salen)为原料,合成了2个新的镧系配合物,即[Dy(salen)2]3·3C2H9N2·2CH3OH(1),[Ho(salen)2]3·3C2H9N2·1.5CH3OH(2),并对其进行了基本表征。X射线单晶衍射结果表明,配合物1和2结晶于单斜晶系C2空间群,其金属配位环境类似。配合物1和2在零场和外加磁场下均具有单分子磁体(SMMs)行为。 |
关键词: 镧系配合物 晶体结构 单分子磁体 |
基金项目: 国家自然科学基金(No.21101090,21561021)、江西省自然科学基金(No.20114BAB213001)和江西省教育厅项目(No.GJJ12041)资助。 |
Abstract: Two new lanthanide complexes based on Schiff base ligand, namely[Dy(salen)2]3·3C2H9N2·2CH3OH (1) and[Ho(salen)2]3·3C2H9N2·1.5CH3OH (2), (H2salen=N,N'-bis(3-methoxysalicylidene)ethylene-1,2-diamine), have been synthesized and characterized. Single-crystal X-ray diffractions reveal that 1 and 2 crystallize in the same monoclinic space group C2, and have similar coordination environment around the metallic centers. Single molecule magnets (SMMs) behaviors have been observed in 1 and 2 with/without an applied magnetic field. |
Keywords: Lanthanide complex crystal structure single-molecule magnet |
投稿时间:2018-03-08 修订日期:2018-05-03 |
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李东平,王倩,谢一步,张俊,连庆云,李永绣.具有缓慢磁弛豫行为的单核Dy(III)和Ho(III)配合物[J].无机化学学报,2018,34(8):1547-1554. |
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