Insights into D4h@metal-symmetry single-molecule magnetism: the case of a dysprosium-bis(boryloxide) complex

Lewis R Thomas-Hargreaves; David Hunger; Michal Kern; Ashley J Wooles; Joris van Slageren; Nicholas F Chilton; Stephen T Liddle

doi:10.1039/d0cc07446b

Insights into D_4h@metal-symmetry single-molecule magnetism: the case of a dysprosium-bis(boryloxide) complex

Chem Commun (Camb). 2021 Jan 26;57(6):733-736. doi: 10.1039/d0cc07446b.

Authors

Lewis R Thomas-Hargreaves¹, David Hunger², Michal Kern², Ashley J Wooles¹, Joris van Slageren², Nicholas F Chilton¹, Stephen T Liddle¹

Affiliations

¹ Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK. [email protected] [email protected].
² Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart, D-70569, Germany.

PMID: 33346270
DOI: 10.1039/d0cc07446b

Abstract

We report the synthesis of the lanthanide-(bis)boryloxide complex [Dy{OB(NArCH)2}2(THF)4][BPh4] (2Dy, Ar = 2,6-Pri2C6H3), with idealised D4h@Dy(iii) point-group symmetry. Complex 2Dy exhibits single-molecule magnetism (SMM), with one of the highest energy barriers (Ueff = 1565(298) K) of any six-coordinate lanthanide-SMM. Complex 2Dy validates electrostatic model predictions, informing the future design of lanthanide-SMMs.