Issue 34, 2020

Enhanced single-molecule magnetism in dysprosium complexes of a pristine cyclobutadienyl ligand

Abstract

Intact transfer of the cyclobutadienyl ligand [C4(SiMe3)4]2− to yttrium and dysprosium (M) produces the half-sandwich complexes [M{η4-C4(SiMe3)4}(BH4)2(THF)] as coordination polymers with bridging sodium or potassium ions. The dysprosium versions are single-molecule magnets (SMMs) with energy barriers of 371(7) and 357(4) cm−1, respectively. The pristine cyclobutadienyl ligands provide a strong axial crystal field that enhances the SMM properties relative to related cyclopentadienyl compounds.

Graphical abstract: Enhanced single-molecule magnetism in dysprosium complexes of a pristine cyclobutadienyl ligand

Supplementary files

Article information

Article type
Communication
Submitted
05 Mar 2020
Accepted
19 Mar 2020
First published
19 Mar 2020
This article is Open Access
Creative Commons BY license

Chem. Commun., 2020,56, 4708-4711

Enhanced single-molecule magnetism in dysprosium complexes of a pristine cyclobutadienyl ligand

J. P. Durrant, J. Tang, A. Mansikkamäki and R. A. Layfield, Chem. Commun., 2020, 56, 4708 DOI: 10.1039/D0CC01722A

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