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Issue 27, 2020
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Hexanuclear [Cp*Dy]6 single-molecule magnet

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Abstract

A hexanuclear cluster [(Cp*Dy)6K4Cl16(THF)6], [Cp*Dy]6, has been constructed from six {Cp*DyIII} synthons in which the strongly coordinating Cp* caps determine the local anisotropy axes. Structural characterization of [Cp*Dy]6 shows two almost parallel triangular (Cp*Dy)3 fragments that are linked by the K+ and Cl ions. Magnetic measurements reveal slow thermal relaxation and fast quantum tunneling relaxation in the absence of an external dc field. After applying a weak dc field, the quantum tunneling relaxation is efficiently suppressed, giving a sizable energy barrier of 561 K, which represents the current record energy barrier for high nuclearity organometallic SMMs.

Graphical abstract: Hexanuclear [Cp*Dy]6 single-molecule magnet

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Supplementary files

Article information


Submitted
16 Dec 2019
Accepted
27 Feb 2020
First published
27 Feb 2020

This article is Open Access

Chem. Commun., 2020,56, 3887-3890
Article type
Communication

Hexanuclear [Cp*Dy]6 single-molecule magnet

J. Wu, S. Demeshko, S. Dechert and F. Meyer, Chem. Commun., 2020, 56, 3887
DOI: 10.1039/C9CC09774K

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