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Single-molecule magnets under dc field with an anion effect: self-assembly of pure dysprosium(iii) metallacycles
Jianfeng Wu1, Qianqian Yang, Haoyu Wang
1Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, Synergetic Innovation Center of Biological Optoelectronics and Healthcare Engineering (BOHE), Shaanxi Provincial Synergistic Innovation Center for Flexible Electronics & Health Sciences (FEHS), School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P. R. China. qi@nwpu.edu.cn.
Abstract:
The anion-adaptive self-assembly described here not only offers a facile approach to produce large single-molecule magnets without the need for precise manipulation of the stoichiometry of ligand-metal centers but also provides an understanding of how structural factors affect the magnetic properties. X-ray diffraction analysis reveals that a rare hexagonal metallacycle with a diameter approaching 23 Å was obtained. Magnetic investigation shows that the resulting hexagonal metallacycle behaves as a typical single-molecule magnet with double relaxation under dc field thanks to the different coordination geometry of the DyIII centers.
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