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Two 3d-4f double helical chains including [Dy2M2](n) (M = Ni-II and Co-II) cores exhibiting slow magnetic relaxation
She, Shixiong1; Li, Yahong1; Li, Wu2
2016
Source PublicationDALTON TRANSACTIONS
Volume45Issue:26Pages:10830-10835
SubtypeArticle
AbstractTwo new 3d-4f heterometallic 1D chains of formulae {[Dy2M2L4(NO3)(H2O)(3)][Dy2M2L4(NO3)(CH3COO)-(H2O)(2)]center dot NO3 center dot 12H(2)O center dot 2C(2)H(5)OH}(n) [M = Ni (1); Co (2)] have been prepared using the multidentate ligand 2-{[(2-hydroxy-3-methoxyphenyl)methylidene]amino}benzoic acid (H2L), which has NO and OO' chelating pockets that are able to selectively encapsulate Ln(III) and transition metal ions, respectively. Crystal structure analyses reveal that the two complexes are isostructural and display one-dimensional ladder like double helical chain structures, in which the two single helical chains {[Dy2M2L4(NO3)(H2O)(3)](+)} and {Dy2M2L4(NO3)(CH3COO)(H2O)(2)} (M = Ni(1), Co(2)) both run along the c-axis and have opposite chirality. Complexes 1 and 2 represent the first example of 3d-4f double-chain frameworks in which the compositions of the two individual chains are different. Variable temperature dc magnetic susceptibility studies reveal different strengths of ferromagnetic interactions between the magnetic centers in 1 and 2, which is mainly attributed to the different metal centers and finally results in the distinctive magnetic dynamic behaviors.
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordSINGLE-MOLECULE-MAGNET ; ANISOTROPY BARRIER ; COMPLEXES ; DY ; BEHAVIOR ; GD ; LN ; TB ; DYNAMICS ; CLUSTERS
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Inorganic & Nuclear
WOS IDWOS:000379352900038
Citation statistics
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6338
Collection青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
Affiliation1.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
Recommended Citation
GB/T 7714
She, Shixiong,Li, Yahong,Li, Wu. Two 3d-4f double helical chains including [Dy2M2](n) (M = Ni-II and Co-II) cores exhibiting slow magnetic relaxation[J]. DALTON TRANSACTIONS,2016,45(26):10830-10835.
APA She, Shixiong,Li, Yahong,&Li, Wu.(2016).Two 3d-4f double helical chains including [Dy2M2](n) (M = Ni-II and Co-II) cores exhibiting slow magnetic relaxation.DALTON TRANSACTIONS,45(26),10830-10835.
MLA She, Shixiong,et al."Two 3d-4f double helical chains including [Dy2M2](n) (M = Ni-II and Co-II) cores exhibiting slow magnetic relaxation".DALTON TRANSACTIONS 45.26(2016):10830-10835.
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