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Issue 11, 2015
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A new family of hetero-tri-metallic complexes [M(CuTb)]n (n = 1, 2, ∞; M = Co, Cr, Fe): synthesis, structure and tailored single-molecule magnet behavior

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Abstract

A new family of hetero-tri-metallic complexes [M(CuTb)]n (MIII = Co, Cr, Fe; n = 1, 2, ∞), composed of three series of three compounds (oligo- and poly-nuclear complexes based on [Cu–Tb] subunits), is presented and fully characterized. These nine compounds, viewed as different assemblies of single-molecule magnet (SMM) building blocks, connected to various hexacyanometalate centers, illustrate how the SMM behavior of the [CuTb] moiety can be modulated via the control of intermolecular interactions. Specifically, the combination of the “non-innocent” diamagnetic [CoIII(CN)6]3− center with a [Cu–Tb]3+ moiety enabled isolation of the magnetic entities, resulting in an improvement of the SMM behavior (ranging from Ueff = 5–7 cm−1 to 15–17 cm−1).

Graphical abstract: A new family of hetero-tri-metallic complexes [M(CuTb)]n (n = 1, 2, ∞; M = Co, Cr, Fe): synthesis, structure and tailored single-molecule magnet behavior

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Article information


Submitted
08 Dec 2014
Accepted
26 Jan 2015
First published
26 Jan 2015

Dalton Trans., 2015,44, 5170-5178
Article type
Paper
Author version available

A new family of hetero-tri-metallic complexes [M(CuTb)]n (n = 1, 2, ∞; M = Co, Cr, Fe): synthesis, structure and tailored single-molecule magnet behavior

N. Bridonneau, G. Gontard and V. Marvaud, Dalton Trans., 2015, 44, 5170
DOI: 10.1039/C4DT03757J

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