Abstract
Magneto-luminescent molecules have significant applications in data storage and quantum computing. However, design of these bi-functional molecules coupled with magnetic behavior and photoluminescence is still challenging. In this work, we report a metallofullerene DyErScN@Ih-C80 exhibiting single-molecule magnet (SMM) behavior and near-infrared emission. For DyErScN@Ih-C80, two functional lanthanide metal ions of Dy3+ (SMM function) and Er3+ (luminescent function) are integrated inside a fullerene cage using a trimetallic nitride template, and its structure has been unambiguously characterized by single-crystal X-ray diffraction. Magnetic measurements revealed that DyErScN@Ih-C80 behaves as a SMM with a blocking temperature up to 9 K resulting from the intramolecular magnetic interaction between Dy3+ and Er3+ ions. Moreover, DyErScN@Ih-C80 exhibits temperature-dependent near-infrared emission around 1.5 μm with multiple splitting peaks from Er3+, which arises from the influence of Dy3+ ion. This study provides a new strategy to synthesize new magneto-luminescent molecule materials.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (Nos. 51672281, 61227902, 51832008, and 51772195) and Beijing Natural Science Foundation (No. 2162050). T. S. W. particularly thanks the Youth Innovation Promotion Association of CAS (No. 2015025). The ab initio calculations in this work were supported by Highperformance Computing Platform of Peking University. We thank Dr. Youming Zou (SHMFF, HMFL, CAS) for the EPR measurements.
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Nie, M., Xiong, J., Zhao, C. et al. Luminescent single-molecule magnet of metallofullerene DyErScN@Ih-C80. Nano Res. 12, 1727–1731 (2019). https://doi.org/10.1007/s12274-019-2429-1
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DOI: https://doi.org/10.1007/s12274-019-2429-1