Two 3d-4f double helical chains including [Dy2M2](n) (M = Ni-II and Co-II) cores exhibiting slow magnetic relaxation

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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, Shixiong 1; Li, Yahong 1; Li, Wu2
	2016
发表期刊	DALTON TRANSACTIONS
卷号	45 期号:26 页码:10830-10835
摘要	Two 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.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6338
专题	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
作者单位	1.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
推荐引用方式 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.