Magnetic Anisotropy along a Series of Lanthanide Polyoxometalates with Pentagonal Bipyramidal Symmetry

Jing Li; Chen Yuan; Li Yang; Ming Kong; Jing Zhang; Jing-Yuan Ge; Yi-Quan Zhang; You Song

doi:10.1021/acs.inorgchem.7b00577

Magnetic Anisotropy along a Series of Lanthanide Polyoxometalates with Pentagonal Bipyramidal Symmetry

Inorg Chem. 2017 Jul 17;56(14):7835-7841. doi: 10.1021/acs.inorgchem.7b00577. Epub 2017 Jun 24.

Authors

Jing Li^{1

2}, Chen Yuan¹, Li Yang², Ming Kong², Jing Zhang², Jing-Yuan Ge², Yi-Quan Zhang¹, You Song²

Affiliations

¹ Jiangsu Key Laboratory for NSLSCS, School of Physical Science and Technology, Nanjing Normal University , Wenyuan Road 1, Nanjing 210023, P. R. China.
² State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Advanced Mirostructures, School of Chemistry and Chemical Engineering, Nanjing University , Xianlin Road 163, Nanjing 210023, P. R. China.

PMID: 28648057
DOI: 10.1021/acs.inorgchem.7b00577

Abstract

Magneto-structural correlations in a series of lanthanide polyoxometalates (POMs) with pentagonal bipyramidal symmetry, namely, [Ln₂(NMP)₁₂(PW₁₂O₄₀)][PW₁₂O₄₀] (NMP is N-methyl pyrrolidone), were studied in detail experimentally combined with theoretical calculations. Furthermore, two types of Dy-based complexes with pentagonal bipyramidal symmetry were built to discuss the dependence of the theoretical energy barriers with the axial Dy-O bond lengths when the magnetic axes in ground Kramers doublet are along the axial orientation or on the equatorial plane. A meaningful conclusion was put forward for designing such Dy-based SIMs with high performance.