Dy2@C79N: a new member of dimetalloazafullerenes with strong single molecular magnetism

Enhancing the exchange interaction between magnetic ions is a long-term target in molecular magnetism. Endohedral metallofullerenes (EMFs) provide a possibility for achieving such a goal by imprisoning multiple magnetic centers inside the confined inner space of a fullerene cage. Here, we report a n...

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Bibliographic Details
Published in:Nanoscale 2020-05, Vol.12 (20), p.11130-11135
Main Authors: Wang, Yuanyuan, Xiong, Jin, Su, Jie, Hu, Ziqi, Ma, Fang, Sun, Rong, Tan, Xueyou, Hao-Ling, Sun, Bing-Wu, Wang, Shi, Zujin, Gao, Song
Format: Article
Language:English
Subjects:
Coupling (molecular)
Crystallography
Ferromagnetism
Hysteresis loops
Magnetism
Metallofullerenes
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Summary:Enhancing the exchange interaction between magnetic ions is a long-term target in molecular magnetism. Endohedral metallofullerenes (EMFs) provide a possibility for achieving such a goal by imprisoning multiple magnetic centers inside the confined inner space of a fullerene cage. Here, we report a new member of dimetallic azafullerene Dy2@C79N via crystallographic determination for the first time. Magnetic studies indicate that the strong ferromagnetic coupling between lanthanide ions and unpaired electrons enables Dy2@C79N to be a favorable SMM with large energy barrier of U = 669 K and observable hysteresis loops below 24 K.
ISSN:2040-3364
2040-3372
DOI:10.1039/d0nr02519d