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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Auxiliary ligand field dominated single-molecule magnets of a series of indole-derivative beta-diketone mononuclear Dy(III) complexes
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Auxiliary ligand field dominated single-molecule magnets of a series of indole-derivative beta-diketone mononuclear Dy(III) complexes

机译:一系列吲哚-衍生物-β-二酮单核Dy(III)配合物的辅助配体场占优势的单分子磁体

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摘要

A series of four indole-derivative beta-diketone mononuclear dysprosium complexes, namely, Dy(EIFD) 3( bpy)center dot CH3CN (1), Dy(EIFD) 3(phen)center dot CH2Cl2 (2), Dy(EIFD)3(dpq)center dot CH2Cl2 (3), and Dy(EIFD) 3(dppz)center dot 2H(2)O (4) (EIFD = 1-(1-ethyl-1H-indol-3-yl)-4,4,4-trifluorobutane-1,3-dione, bpy = 2,2'-bipyridine, phen = 1,10-phenanthroline, dpq = dipyrazine[2,3-f: 2', 3'-h] quinoxaline, dppz = dipyrido[3,2-a: 2', 3'-c] phenazine) have been isolated by reactions of EIFD, DyCl3 center dot 6H(2)O and a series of auxiliary ligands. X-ray crystallographic analysis reveals that complexes 1-4 are all eight-coordinated mononuclear structures. Magnetic studies indicate that complexes 1-4 are all single-molecule magnets. Notably, the auxiliary ligands play an essential role in regulating their magnetism. The corresponding structural and magnetic parameters have been discussed in detail.
机译:一系列的四种吲哚衍生物β-二酮单核配合物,即Dy(EIFD)3(bpy)中心点CH3CN(1),Dy(EIFD)3(phen)中心点CH2Cl2(2),Dy(EIFD) 3(dpq)中心点CH2Cl2(3)和Dy(EIFD)3(dppz)中心点2H(2)O(4)(EIFD = 1-(1-乙基-1H-吲哚-3-基)-4 ,4,4-三氟丁烷-1,3-二酮,bpy = 2,2'-联吡啶,phen = 1,10-菲咯啉,dpq =二吡嗪[2,3-f:2',3'-h]喹喔啉, dppz = dipyrido [3,2-a:2',3'-c]吩嗪)已通过EIFD,DyCl3中心点6H(2)O和一系列辅助配体的反应分离出来。 X射线晶体学分析表明,配合物1-4都是八配位的单核结构。磁性研究表明,配合物1-4均为单分子磁体。值得注意的是,辅助配体在调节其磁性方面起着至关重要的作用。已经详细讨论了相应的结构和磁参数。

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