Isotopically enriched polymorphs of dysprosium single molecule magnets

Y Kishi; F Pointillart; B Lefeuvre; F Riobé; B Le Guennic; S Golhen; O Cador; O Maury; H Fujiwara; L Ouahab

doi:10.1039/c7cc00317j

Isotopically enriched polymorphs of dysprosium single molecule magnets

Chem Commun (Camb). 2017 Mar 23;53(25):3575-3578. doi: 10.1039/c7cc00317j.

Authors

Y Kishi¹, F Pointillart², B Lefeuvre², F Riobé³, B Le Guennic², S Golhen², O Cador², O Maury³, H Fujiwara⁴, L Ouahab²

Affiliations

¹ Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS - Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France. fabrice.pointillart@univ-rennes1.fr olivier.cador@univ-rennes1.fr and Department of Chemistry, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan. hfuji@c.s.osakafu-u.ac.jp.
² Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS - Université de Rennes 1, 263 Avenue du Général Leclerc, 35042 Rennes Cedex, France. fabrice.pointillart@univ-rennes1.fr olivier.cador@univ-rennes1.fr.
³ Laboratoire de Chimie, UMR 5182 CNRS-ENS Lyon-Université Lyon 1, 46 Allée d'Italie, 69364 Lyon Cedex, France.
⁴ Department of Chemistry, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8531, Japan. hfuji@c.s.osakafu-u.ac.jp.

PMID: 28288213
DOI: 10.1039/c7cc00317j

Abstract

A triclinic polymorph Dy(t) and a monoclinic polymorph Dy(m) of [Dy(tta)₃(L)] with L = 4-[6-(1,3-benzothiazol-2-yl)pyridin-3-yl]-4',5'-bis(methylthio)tetrathiafulvene behave as Single-Molecule Magnets with hysteresis loops opened at zero field. Magnetic properties were enhanced through magnetic dilution and ¹⁶⁴Dy isotopic enrichment which definitively support the importance of isotopes for the control of quantum magnets.