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Eight homodinuclear lanthanide complexes prepared from a quinoline based ligand: structural diversity and single-molecule magnetism behaviour
Pan, Yangdan1; Zhang, Haifeng1; Qin, Yaru1; Ge, Yu1; Cui, Yanfeng1; Li, Yahong1; Liu, Wei1; Dong, Yaping2
2018-04-07
Source PublicationNEW JOURNAL OF CHEMISTRY
Volume42Issue:7Pages:5153-5161
SubtypeArticle
AbstractEight dinuclear lanthanide complexes of compositions [Pr2L2(NO3)(4)(H2O)]center dot EtOH (1), [Nd2L2(NO3)(4)(CH3CN)]center dot CH3CN (2), [Sm2L2(NO3)(4)(CH3CN)]center dot CH3CN (3), [Eu2L2(NO3)(4)(H2O)] (4), [Tb2L2(NO3)(4)] (5), [Dy2L2(NO3)(4)] (6), [Ho2L2(NO3)(4)] (7) and [Er2L2(NO3)(4)] (8) (HL = 2-{[(2-hydroxy-3-methoxybenzyl)imino]methyl}quinoline-2-formaldehyde) have been synthesized by reactions of Ln(NO3)(3)center dot 6H(2)O with a tetradentate quinoline-based Schiff base ligand (HL) in MeCN/EtOH/NEt3 solution. The structures of 1-8 are characterized by X-ray single crystal diffraction analysis. They exhibit four distinct structures. In complex 1, two Pr-III atoms are triply bridged by three oxygen atoms, including an unusual water bridge. Complexes 2 and 3 are isostructural, in which two metal centres are nine- and ten-coordinated, respectively. There are two characteristic Eu-III ions in 4, which are eight- and ten-coordinated, respectively. In the isomorphous compounds 5-8, the two Ln(III) atoms in the centrosymmetric molecules are doubly bridged by phenolate oxygen atoms and both metal ions possess nine-coordinate environments. Dc magnetic susceptibility studies in the 2-300 K range were performed for compounds 6 and 7. Antiferromagnetic interactions were determined for these two complexes. Complex 6 shows slow magnetic relaxation behaviour with an energy barrier (U-eff/K-B) of 14.3 K.
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordRARE-EARTH COMPLEXES ; ENERGY BARRIER ; DY-III ; SLOW RELAXATION ; COORDINATION-COMPLEXES ; EXCHANGE INTERACTION ; CRYSTAL-STRUCTURE ; ION-ANISOTROPY ; LADDER-TYPE ; DYSPROSIUM
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000429055100043
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6444
Collection青海盐湖研究所知识仓储
Affiliation1.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China
Recommended Citation
GB/T 7714
Pan, Yangdan,Zhang, Haifeng,Qin, Yaru,et al. Eight homodinuclear lanthanide complexes prepared from a quinoline based ligand: structural diversity and single-molecule magnetism behaviour[J]. NEW JOURNAL OF CHEMISTRY,2018,42(7):5153-5161.
APA Pan, Yangdan.,Zhang, Haifeng.,Qin, Yaru.,Ge, Yu.,Cui, Yanfeng.,...&Dong, Yaping.(2018).Eight homodinuclear lanthanide complexes prepared from a quinoline based ligand: structural diversity and single-molecule magnetism behaviour.NEW JOURNAL OF CHEMISTRY,42(7),5153-5161.
MLA Pan, Yangdan,et al."Eight homodinuclear lanthanide complexes prepared from a quinoline based ligand: structural diversity and single-molecule magnetism behaviour".NEW JOURNAL OF CHEMISTRY 42.7(2018):5153-5161.
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