Issue 100, 2016

Improved slow magnetic relaxation in optically pure helicene-based DyIII single molecule magnets

Abstract

Racemic and optically pure [Dy(hfac)3(L)] complexes with L = 3-(2-pyridyl)-4-aza[6]-helicene have been synthesized and characterized. Both the racemic and enantiopure forms behave as single molecule magnets in their crystalline phase, while electronic circular dichroism activity is evidenced. Ab initio calculations on isolated complexes followed by the determination of intermolecular dipolar couplings allowed the rationalization of the different low-temperature magnetic behaviours. The enantiopure SMM differs from the racemic one by the presence of a hysteresis loop in the former system.

Graphical abstract: Improved slow magnetic relaxation in optically pure helicene-based DyIII single molecule magnets

Supplementary files

Article information

Article type
Communication
Submitted
27 Oct 2016
Accepted
23 Nov 2016
First published
23 Nov 2016

Chem. Commun., 2016,52, 14474-14477

Improved slow magnetic relaxation in optically pure helicene-based DyIII single molecule magnets

J.-K. Ou-Yang, N. Saleh, G. Fernandez Garcia, L. Norel, F. Pointillart, T. Guizouarn, O. Cador, F. Totti, L. Ouahab, J. Crassous and B. Le Guennic, Chem. Commun., 2016, 52, 14474 DOI: 10.1039/C6CC08638A

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