Abstract
The ability to construct magnetic self-assembling architectures in carbon materials offers a novel and extremely tantalizing route towards spintronics, both from fundamental and application points of view. Endohedral metallofullerenes (EMFs) have been considered as a competitive candidate to achieve this goal due to their unique configuration and fascinating magnetism. In this work, a typical gadofullerene, Gd@C82-C2v, was successfully accommodated in the cavity of metal-organic frameworks (MOFs). The superconducting quantum interference device (SQUID) results unveiled an antiferromagnetic-like interaction of Gd@C82 with extremely enhanced paramagnetic moment. It was found that the confined effect of the aromatic fences of MOF matrix played a significant role in regulating the magnetic behavior of Gd@C82 molecules. Such a three-dimensional magnetic array of Gd@C82 would promote its application in high-density information storage and spintronic nanodevices.
Acknowledgements
This work was financially supported by the National Natural Science Foundation of China (21603243), Beijing National Laboratory for Molecular Sciences (BNLMS201805), Natural Science Foundation of Shaanxi Province (2019JQ-203), Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry (KFKT2019-06), and Natural Science Foundation of Shaanxi Provincial Department of Education (17JK0093). Dr. Y. Q. Feng was grateful for the support from the “1000 Youth Talents Plan” of Shaanxi Province, Platform Construction Fund for Imported Talent of Shaanxi University of Science and Technology (134080038) and Youth Talents of Shaanxi University of Science and Technology (2016QNBJ-14).
Conflict of interest
The authors declare that they have no conflict of interest.
Supplementary information
Experimental details, HPLC and MALDI-TOF-MS profiles of Gd@C82, SEM image and M-H curve of MOF-177 are available in the online version of the paper.