Issue 42, 2016

Single ion magnets based on lanthanoid polyoxomolybdate complexes

Abstract

Polyoxometalate (POM) chemistry has recently offered excellent examples of single ion magnets (SIMs) and molecular spin qubits. Compared with conventional coordination compounds, POMs provide rigid and highly symmetric coordination sites. However, all POM-based SIMs reported to date exhibit a very limited range of possibilities for chemical processability. We present herein two new families of POM-based SIMs which are soluble in organic solvents: [Ln(β-Mo8O26)2]5− {LnIII = Tb, Dy, Ho, Er, Tm and Yb} and the functionalised POMs [Ln{Mo5O13(OMe)4NNC6H4-p-NO2}2]3− {LnIII = Tb, Dy, Ho, Er, Yb and Nd}. In addition, these two families represent the first SIMs based on polyoxomolybdates. A magneto-structural analysis of these families is presented, which is based on an effective crystal field model, and compared with the results reported in analogous lanthanoid SIMs based on polyoxotungstates.

Graphical abstract: Single ion magnets based on lanthanoid polyoxomolybdate complexes

Supplementary files

Article information

Article type
Paper
Submitted
06 Jun 2016
Accepted
24 Aug 2016
First published
25 Aug 2016
This article is Open Access
Creative Commons BY license

Dalton Trans., 2016,45, 16653-16660

Author version available

Single ion magnets based on lanthanoid polyoxomolybdate complexes

J. J. Baldoví, Y. Duan, C. Bustos, S. Cardona-Serra, P. Gouzerh, R. Villanneau, G. Gontard, J. M. Clemente-Juan, A. Gaita-Ariño, C. Giménez-Saiz, A. Proust and E. Coronado, Dalton Trans., 2016, 45, 16653 DOI: 10.1039/C6DT02258H

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