Contrasting single-molecule magnet behaviour in dysprosium and terbium bis(stannolediide) complexes

Nature Chemistry 2026 Open access

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Authors: Xiaofei Sun, Alexander Hinz, Stefanie Maier, Sebastian Gillhuber, Da Jin, Masaichi Saito, Florian Weigend, Sören Schlittenhardt, Eufemio Moreno Pineda, Wolfgang Wernsdorfer, Mario Ruben, Peter W. Roesky
DOI: 10.1038/s41557-026-02114-9
Cited by: 7
References: 89

Abstract

Abstract The development of single-molecule magnets for high-density data storage has advanced from poly(metallic) cages to lanthanide complexes. Since 2017, highly axial dysprosium bis(cyclopentadienide) complexes have demonstrated exceptional energy barriers to magnetic reversal ( U eff ) and high hysteresis temperatures ( T H ), with further enhancement achieved in 2025 using bulky amide ligands. Recently, dianionic heavy group 14 cyclopentadienides have emerged as promising ligands due to their higher charge density. Here we report the synthesis of two isostructural homoleptic bis(stannolediide) complexes [Ln(η 5 -L Sn ) 2 K(thf) 4 ] (Ln = Tb(III) or Dy(III)). The Dy(III) complex exhibits single-molecule magnet behaviour with a U eff of 1,502(4) K and a blocking temperature of 55 K, whereas the Tb(III) analogue shows Raman-dominated relaxation

Fields of Study & Subjects

Magnetism in coordination complexes Synthesis and Properties of Aromatic Compounds Lanthanide and Transition Metal Complexes

Publication details

Journal / source
Nature Chemistry
Publisher
Springer Science and Business Media LLC
Volume
18
Issue
5
Pages
872–881
Publication date
13 April 2026
Language
EN