Bis‐Alkoxide Dysprosium(III) Crown Ether Complexes Exhibit Tunable Air Stability and Record Energy Barrier

Wen‐Jie Xu; Qian‐Cheng Luo; Zi‐Han Li; Yuan‐Qi Zhai; Yan‐Zhen Zheng

doi:10.1002/advs.202308548

journal article Open Access Feb 23, 2024

Bis‐Alkoxide Dysprosium(III) Crown Ether Complexes Exhibit Tunable Air Stability and Record Energy Barrier

Wen‐Jie Xu Qian‐Cheng Luo Zi‐Han Li Yuan‐Qi Zhai Yan‐Zhen Zheng

Advanced Science Vol. 11 No. 17 · Wiley

View at Publisher Save 10.1002/advs.202308548

Abstract

AbstractHigh‐performance and air‐stable single‐molecule magnets (SMMs) can offer great convenience for the fabrication of information storage devices. However, the controversial requisition of high stability and magnetic axiality is hard to balance for lanthanide‐based SMMs. Here, a family of dysprosium(III) crown ether complexes possessing hexagonal‐bipyramidal (pseudo‐D6h symmetry) local coordination geometry with tunable air stability and effective energy barrier for magnetization reversal (Ueff) are shown. The three complexes share the common formula of [Dy(18‐C‐6)L2][I3] (18‐C‐6 = 1,4,7,10,13,16‐hexaoxacyclooctadecane; L = I, 1; L = OtBu 2 and L = 1‐AdO 3). 1 is highly unstable in the air. 2 can survive in the air for a few minutes, while 3 remains unchanged in the air for more than 1 week. This is roughly in accordance with the percentage of buried volumes of the axial ligands. More strikingly, 2 and 3 show progressive enhancement of Ueff and 3 exhibits a record high Ueff of 2427(19) K, which significantly contributes to the 100 s blocking temperature up to 11 K for Yttrium‐diluted sample, setting a new benchmark for solid‐state air‐stable SMMs.

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Published: Feb 23, 2024
Vol/Issue: 11(17)
License: View

Authors

W

Wen‐Jie Xu

Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering The First Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi 710061 P. R. China; Frontier Institute of Science and Technology (FIST) State Key Laboratory of Electrical Insulation and Power Equipment MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Key Laboratory of Electronic Devices and Material Chemistry, and School of Chemistry Xi'an Jiaotong University Xi'an Shaanxi 710054 P. R. China

Q

Qian‐Cheng Luo

Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering The First Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi 710061 P. R. China; Frontier Institute of Science and Technology (FIST) State Key Laboratory of Electrical Insulation and Power Equipment MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Key Laboratory of Electronic Devices and Material Chemistry, and School of Chemistry Xi'an Jiaotong University Xi'an Shaanxi 710054 P. R. China

Z

Zi‐Han Li

Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering The First Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi 710061 P. R. China; Frontier Institute of Science and Technology (FIST) State Key Laboratory of Electrical Insulation and Power Equipment MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Key Laboratory of Electronic Devices and Material Chemistry, and School of Chemistry Xi'an Jiaotong University Xi'an Shaanxi 710054 P. R. China

Y

Yuan‐Qi Zhai

Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering The First Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi 710061 P. R. China; Frontier Institute of Science and Technology (FIST) State Key Laboratory of Electrical Insulation and Power Equipment MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Key Laboratory of Electronic Devices and Material Chemistry, and School of Chemistry Xi'an Jiaotong University Xi'an Shaanxi 710054 P. R. China

Y

Yan‐Zhen Zheng

Department of Hepatobiliary Surgery and Institute of Advanced Surgical Technology and Engineering The First Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi 710061 P. R. China; Frontier Institute of Science and Technology (FIST) State Key Laboratory of Electrical Insulation and Power Equipment MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Key Laboratory of Electronic Devices and Material Chemistry, and School of Chemistry Xi'an Jiaotong University Xi'an Shaanxi 710054 P. R. China

Funding

National Natural Science Foundation of China Award: 22375157

State Key Laboratory of Electrical Insulation and Power Equipment Award: EIPE23405

Cite This Article

Wen‐Jie Xu, Qian‐Cheng Luo, Zi‐Han Li, et al. (2024). Bis‐Alkoxide Dysprosium(III) Crown Ether Complexes Exhibit Tunable Air Stability and Record Energy Barrier. Advanced Science, 11(17). https://doi.org/10.1002/advs.202308548

Bis‐Alkoxide Dysprosium(III) Crown Ether Complexes Exhibit Tunable Air Stability and Record Energy Barrier

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