A family of nickel-lanthanide heterometallic dinuclear complexes derived from a chiral Schiff-base ligand exhibiting single-molecule magnet behaviors

	A family of nickel-lanthanide heterometallic dinuclear complexes derived from a chiral Schiff-base ligand exhibiting single-molecule magnet behaviors
	Wen, He-Rui 1; Liu, Sui-Jun 1; Xie, Xin-Rong 1; Bao, Jun 1; Liu, Cai-Ming 2; Chen, Jing-Lin 1
刊名	INORGANICA CHIMICA ACTA
	2015-08-24
卷号	435 页码:274-282
关键词	Nickel-lanthanide Heterometallic complexes Chiral Schiff-base Magnetic properties Single-molecule magnets
英文摘要	A new family of nickel-lanthanide heterometallic dinuclear complexes derived from a chiral Schiff-base ligand, (R,R)-N,N'-bis(3-methoxysalicylidene)cyclohexane-1,2-diamine (H2L), namely [Ni(L)Ln(NO3)(3)-(H2O)] (Ln = Ce (1), Nd (2)) and [Ni(L)Ln(NO3)(3)] (Ln = Sm (3), Eu (4), Gd (5), Tb (6), Dy (7) and Yb (8)) have been synthesized and structurally characterized. X-ray single-crystal structure determination revealed that these complexes are diphenoxo-bridged Ni-II-Ln(III) dinuclear clusters, which crystallize in the chiral space group P1. The solid circular dichroism (CD) spectra confirmed the optical activity and enantiomorphous properties of all these complexes. Magnetic investigations suggested that crystal-field effects and/or the possible antiferromagnetic dipole-dipole interaction between the molecules exist in the complexes and single-ion properties of Ln(III) ions lead to their magnetic behaviors. The alternating current (ac) magnetic susceptibilities showed that complexes 6 and 7 exhibit field-induced single-molecule magnet behaviors due to the strong anisotropy and important crystal-field effect of the Tb-III or Dy-III ions. It is noteworthy that the quantum tunneling effect at low temperatures can be effectively suppressed by employing a 2 kOe direct current field. (C) 2015 Elsevier B.V. All rights reserved.
收录类别	SCI
语种	英语
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/27731]
专题	化学研究所_有机固体实验室
作者单位	1.Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou 341000, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Ctr Mol Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wen, He-Rui,Liu, Sui-Jun,Xie, Xin-Rong,et al. A family of nickel-lanthanide heterometallic dinuclear complexes derived from a chiral Schiff-base ligand exhibiting single-molecule magnet behaviors[J]. INORGANICA CHIMICA ACTA,2015,435:274-282.
APA	Wen, He-Rui,Liu, Sui-Jun,Xie, Xin-Rong,Bao, Jun,Liu, Cai-Ming,&Chen, Jing-Lin.(2015).A family of nickel-lanthanide heterometallic dinuclear complexes derived from a chiral Schiff-base ligand exhibiting single-molecule magnet behaviors.INORGANICA CHIMICA ACTA,435,274-282.
MLA	Wen, He-Rui,et al."A family of nickel-lanthanide heterometallic dinuclear complexes derived from a chiral Schiff-base ligand exhibiting single-molecule magnet behaviors".INORGANICA CHIMICA ACTA 435(2015):274-282.