Issue 34, 2020
From the journal:

Chemical Communications

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

James P. Durrant, ORCID logo ab   Jinkui Tang, ORCID logo c   Akseli Mansikkamäki ORCID logo *d  and  Richard A. Layfield ORCID logo *a  

* Corresponding authors

a Department of Chemistry, School of Life Sciences, University of Sussex, Brighton, UK
E-mail: R.Layfield@sussex.ac.uk

b School of Chemistry, The University of Manchester, Oxford Road, Manchester, UK

c Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5626, 130022 Changchun, China

d NMR Research Unit, University of Oulu, P.O. Box 8000, Finland
E-mail: Akseli.Mansikkamaki@oulu.fi

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

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Article information

DOI
https://doi.org/10.1039/D0CC01722A
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

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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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