First heterometallic GaIII–DyIII single-molecule magnets: implication of GaIII in extracting Fe–Dy interaction

Sihuai Chen; Valeriu Mereacre; Christopher E. Anson; Annie K. Powell

doi:10.1039/C6DT01364C

First heterometallic Ga^III–Dy^III single-molecule magnets: implication of Ga^III in extracting Fe–Dy interaction†

Sihuai Chen,*^ab Valeriu Mereacre,*^a Christopher E. Anson^a and Annie K. Powell*^ac

* Corresponding authors

^a Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse15, 76131 Karlsruhe, Germany
E-mail: valeriu.mereacre@kit.edu, annie.powell@kit.edu

^b State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
E-mail: chensihuai@fjirsm.ac.cn

^c Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany

Abstract

The compounds of the system [M₄M′₂(μ₃-OH)₂(nbdea)₄(C₆H₅CO₂)₈]·MeCN, where M = Ga^III, M′ = Dy^III (2), M = Fe^III, M′ = Y^III (3) are isostructural to the known [Fe₄Dy₂] compound (1). Those of the system [M₄M′₄(μ₃-OH)₄(nbdea)₄(m-CH₃C₆H₄CO₂)₁₂]·nMeCN, where M = Ga^III, M′ = Dy^III, n = 4 (5), M = Fe^III, M′ = Y^III, n = 1 (6) are isostructural to the [Fe₄Dy₄] compound (4). This allows for comparisons between single ion effects of the paramagnetic ions. The structures were determined using single crystal analysis. Magnetic susceptibility measurements reveal that the Ga^III–Dy^III compounds 2 and 5 are SMMs. The energy barrier for 2 is close to that for the known isostructural Fe₄Dy₂ compound (1), but with a significantly increased relaxation time.

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DOI: https://doi.org/10.1039/C6DT01364C
Article type: Paper
Submitted: 08 Apr 2016
Accepted: 06 May 2016
First published: 10 May 2016
This article is Open Access

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Dalton Trans., 2016,45, 9336-9344

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First heterometallic Ga^III–Dy^III single-molecule magnets: implication of Ga^III in extracting Fe–Dy interaction

S. Chen, V. Mereacre, C. E. Anson and A. K. Powell, Dalton Trans., 2016, 45, 9336 DOI: 10.1039/C6DT01364C

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Dalton Transactions

First heterometallic Ga^III–Dy^III single-molecule magnets: implication of Ga^III in extracting Fe–Dy interaction†

Abstract

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First heterometallic Ga^III–Dy^III single-molecule magnets: implication of Ga^III in extracting Fe–Dy interaction

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Dalton Transactions

First heterometallic GaIII–DyIII single-molecule magnets: implication of GaIII in extracting Fe–Dy interaction†

Abstract

Supplementary files

Article information

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First heterometallic GaIII–DyIII single-molecule magnets: implication of GaIII in extracting Fe–Dy interaction

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First heterometallic Ga^III–Dy^III single-molecule magnets: implication of Ga^III in extracting Fe–Dy interaction†

First heterometallic Ga^III–Dy^III single-molecule magnets: implication of Ga^III in extracting Fe–Dy interaction