A Heterometallic FeII–DyIII Single‐Molecule Magnet with a Record Anisotropy Barrier1. Issue 47 (24th September 2014)

• Record Type: Journal Article
• Authors: Liu, Jun‐Liang; Wu, Jie‐Yi; Chen, Yan‐Cong; Mereacre, Valeriu; Powell, Annie K.; Ungur, Liviu; Chibotaru, Liviu F.; Chen, Xiao‐Ming; Tong, Ming‐Liang
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 47(2014)
• Page Start: 12966
• Page End: 12970
• Publication Date: 2014-09-24
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201407799
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A record anisotropy barrier (319 cm⁻¹) for all d‐f complexes was observed for a unique Fe^II‐Dy^III‐Fe^II single‐molecule magnet (SMM), which possesses two asymmetric and distorted Fe^II ions and one quasi‐<italic>D</italic>_{5<italic>h</italic>} Dy^III ion. The frozen magnetization of the Dy^III ion leads to the decreased Fe^II relaxation rates evident in the Mössbauer spectrum. Ab initio calculations suggest that tunneling is interrupted effectively thanks to the exchange doublets.</p> </abstract>