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Issue 40, 2019
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A luminescent single-molecule magnet of dimetallofullerene with cage-dependent properties

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Abstract

It is important to explore luminescent single-molecule magnets (SMMs) to promote their application in high-density data storage. Herein, we report two dimetallofullerenes of DyEr@C82 isomers, which exhibit cage-dependent single-molecule magnet behavior and photoluminescence properties. DyEr@C82 isomers were characterized with a Cs and C3v cage symmetry by UV-vis-NIR spectroscopy and single-crystal X-ray diffraction analysis. Magnetic results revealed that DyEr@C3v-C82 displays SMM behavior below 3 K, whereas DyEr@Cs-C82 is a paramagnet. In addition, photoluminescence (PL) was also observed for both of these two isomers, whose peak patterns are different. Theoretical calculations revealed the presence of a one-electron-two-center Dy–Er bond in these two isomers, and different electronic structures of DyEr@Cs-C82 and DyEr@C3v-C82, which agrees well with the experimental results. These results show that dimetallofullerenes are promising magneto-luminescent materials with varied properties.

Graphical abstract: A luminescent single-molecule magnet of dimetallofullerene with cage-dependent properties

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Publication details

The article was received on 21 Jun 2019, accepted on 11 Sep 2019 and first published on 12 Sep 2019


Article type: Paper
DOI: 10.1039/C9NR05255K
Nanoscale, 2019,11, 18612-18618

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    A luminescent single-molecule magnet of dimetallofullerene with cage-dependent properties

    M. Nie, L. Yang, C. Zhao, H. Meng, L. Feng, P. Jin, C. Wang and T. Wang, Nanoscale, 2019, 11, 18612
    DOI: 10.1039/C9NR05255K

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