Issue 5, 2018
From the journal:

Chemical Science

Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes†

Peng Zhang, ORCID logo a   Mauro Perfetti,ab   Michal Kern, ORCID logo a   Philipp P. Hallmen,a   Liviu Ungur, ORCID logo c   Samuel Lenz,a   Mark R. Ringenberg, ORCID logo d   Wolfgang Frey,e   Hermann Stoll,f   Guntram Rauhut ORCID logo f  and  Joris van Slageren ORCID logo *a  

* Corresponding authors

a Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, Stuttgart, Germany
E-mail: slageren@ipc.uni-stuttgart.de

b Department of Chemistry, University of Copenhagen, Universitetparken 5, 2100 Copenhagen, Denmark

c Theory of Nanomaterials Group, INPAC-Institute of Nanoscale Physics and Chemistry, Katholieke Universiteit Leuven, 3001 Leuven, Belgium

d Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany

e Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany

f Institut für Theoretische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany

Abstract

Tetraoxolene radical-bridged lanthanide SMM systems were prepared for the first time by reduction of the respective neutral compounds. Magnetic measurements reveal the profound influence of the radical center on magnetic behavior. Strong magnetic couplings are revealed in the radical species, which switch on SMM behavior under zero applied field for DyIII and TbIII compounds. HFEPR spectra unravel the contributions of the magnetic coupling and the magnetic anisotropy. For GdIII this results in much more accurate magnetic coupling parameters with respect to bulk magnetic measurements.

Graphical abstract: Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes

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Article information

DOI
https://doi.org/10.1039/C7SC04873D
Article type
Edge Article
Submitted
13 Nov 2017
Accepted
07 Dec 2017
First published
08 Dec 2017
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2018,9, 1221-1230

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Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes

P. Zhang, M. Perfetti, M. Kern, P. P. Hallmen, L. Ungur, S. Lenz, M. R. Ringenberg, W. Frey, H. Stoll, G. Rauhut and J. van Slageren, Chem. Sci., 2018, 9, 1221 DOI: 10.1039/C7SC04873D

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