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Issue 11, 2017
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Construction of lanthanide single-molecule magnets with the “magnetic motif” [Dy(MQ)4]

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Abstract

A dinuclear complex (HNEt3)[Dy2(MQ)4(NO3)3]·EtOH·H2O (HMQ = 2-methyl-8-hydroxyquinoline) was prepared and proved to have no observable single-molecule magnet (SMM) behaviour. With increasing NEt3 in the reaction, two coordinated NO3 units in the {(NO3)3} pocket were replaced by an additional “magnetic motif” [Dy(MQ)4]. In this way, the unfavourable interactions between the two dysprosiums were diminished and a trinuclear complex [Dy3(MQ)8(NO3)] was obtained, which behaves as an SMM with an efficient energy barrier of 244(21) K for the full temperature range and 150(12) K for the high-temperature region. It is suggested that introduction of a “magnetic motif” is a feasible strategy for modulating the magnetic behaviour of polynuclear systems.

Graphical abstract: Construction of lanthanide single-molecule magnets with the “magnetic motif” [Dy(MQ)4]−

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Publication details

The article was received on 08 Jul 2017, accepted on 18 Sep 2017 and first published on 19 Sep 2017


Article type: Research Article
DOI: 10.1039/C7QI00393E
Citation: Inorg. Chem. Front., 2017,4, 1776-1782
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    Construction of lanthanide single-molecule magnets with the “magnetic motif” [Dy(MQ)4]

    D. Lyu, J. Zheng, Q. Li, J. Liu, Y. Chen, J. Jia and M. Tong, Inorg. Chem. Front., 2017, 4, 1776
    DOI: 10.1039/C7QI00393E

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