Issue 15, 2013
From the journal:

Dalton Transactions

Heterometallic octanuclear REIII3NiII5 (RE = DyIII, GdIII and YIII) clusters with slow magnetic relaxation for the dysprosium derivative†

Huiyu Wang,ab   Hongshan Ke,a   Shuang-Yan Lin,a   Yang Guo,a   Lang Zhao,*a   Jinkui Tang*a  and  Yun-Hui Lib  

* Corresponding authors

a State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
E-mail: tang@ciac.jl.cn
Fax: (+)86-431-85262878

b School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, People's Republic of China

Abstract

Reactions of rare earth benzoate and nickel perchlorate with a Schiff-base ligand, 2-([(2-hydroxyphenyl)imino]methyl) phenol (H2L), in the presence of triethylamine yielded three heterobimetallic octanuclear clusters of general formula [RE3Ni5L5(PhCOO)3(μ3-OH)5(μ3-OCH3)(CH3OH)4(H2O)]·xCH3OH·yH2O (RE = DyIII, x = 4, y = 4 (1), RE = GdIII, x = 5, y = 4 (2), RE = YIII, x = 5, y = 3 (3)). Single-crystal X-ray diffraction reveals that the metal core of each cluster consists of two distorted [RE2Ni2O4] cubane-like moieties and a heterobimetallic triangular [RE2NiO2] unit, with RE ions arranged in a typical triangular fashion. Variable-temperature solid state magnetic susceptibilities of these complexes were measured in the temperature range 2–300 K and the results indicate that an overall ferromagnetic interaction among the metal ions is operative for compounds 2 and 3. Under zero external field, the Dy3Ni5 compound shows a frequency dependence of the out-of-phase (χ′′) signals, which indicates slow relaxation of the magnetization.

Graphical abstract: Heterometallic octanuclear REIII3NiII5 (RE = DyIII, GdIII and YIII) clusters with slow magnetic relaxation for the dysprosium derivative

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Article information

DOI
https://doi.org/10.1039/C3DT32572E
Article type
Paper
Submitted
27 Oct 2012
Accepted
14 Jan 2013
First published
14 Jan 2013

Dalton Trans., 2013,42, 5298-5303

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Heterometallic octanuclear REIII3NiII5 (RE = DyIII, GdIII and YIII) clusters with slow magnetic relaxation for the dysprosium derivative

H. Wang, H. Ke, S. Lin, Y. Guo, L. Zhao, J. Tang and Y. Li, Dalton Trans., 2013, 42, 5298 DOI: 10.1039/C3DT32572E

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