Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 38, Pages 32607-32612Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b11098
Keywords
metallofullerene; MOP; magnetic property; azobenzene group; light control
Funding
- National Natural Science Foundation of China [61227902, 51672281, 51472248]
- Beijing Natural Science Foundation [2162050]
- Youth Innovation Promotion Association of CAS [2015025]
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Molecular magnets with optically controlled property have significant applications in data storage and quantum information processing. Herein, we report the optically controlled molecular magnetism of endohedral metallofullerenes, Sc3C2@C-80 and DySc2N@C-80, by incarcerating them into the pores of a photoswitchable azobenzene-functionalized metal-organic framework (MOF) ((MOF)-M-Azo). After ultraviolet (365 nm) irradiation, the isomerization of azobenzene groups in the (MOF)-M-Azo was found to be able to modulate the spin relaxation of Sc3C2@C-80 and also improve the single-molecule magnet behavior of DySc2N@C-80. The photoisomerization of azobenzene side groups changes the host-guest interaction between metallofullerene and (MOF)-M-Azo pores and endows them with the potential to modulate the magnetic properties with light. These findings offer an effective method to create smart molecular magnetic materials and also promote their applications in information recording, spintronics, and sensors.
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