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Issue 41, 2013
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A single-molecule magnet featuring a parallelogram [Dy4(OCH2–)4] core and two magnetic relaxation processes

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Abstract

An alkoxido-bridged tetranuclear Dy(III) complex, [Dy4(H3L)2(OAc)6]·2EtOH {1, H6L = 1,3-bis[tris(hydroxymethyl)methylamino]propane}, has been solvothermally synthesized and characterized. An X-ray crystallographic study revealed that complex 1 possesses a novel “parallelogram” [Dy4(OCH2–)4] core, and a new binding mode η3311124 of the Bis-tris propane ligand was observed. Magnetic investigations indicated that it is a single-molecule magnet (SMM), showing two distinct magnetic relaxation processes with the energy barriers of 44 K and 107 K, respectively. Such a two-step magnetic relaxation process could be well described by the sum of two modified Debye functions.

Graphical abstract: A single-molecule magnet featuring a parallelogram [Dy4(OCH2–)4] core and two magnetic relaxation processes

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Article information


Submitted
03 Jul 2013
Accepted
31 Jul 2013
First published
01 Aug 2013

Dalton Trans., 2013,42, 14813-14818
Article type
Paper

A single-molecule magnet featuring a parallelogram [Dy4(OCH2–)4] core and two magnetic relaxation processes

C. Liu, D. Zhang and D. Zhu, Dalton Trans., 2013, 42, 14813
DOI: 10.1039/C3DT51785C

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