@article{Meng2021, 
author = {Haibing Meng and Yongqiang Chai and Chong Zhao and Mingzhe Nie and Chunru Wang and Taishan Wang},
title = {Covalently bonded two spin centers of paramagnetic metallofullerene dimer},
year = {2021},
journal = {Nano Research},
volume = {14},
number = {12},
pages = {4658-4663},
keywords = {metallofullerene, dimer, electron spin, hyperfine couplings, paramagnetic property},
url = {https://www.sciopen.com/article/10.1007/s12274-021-3398-8},
doi = {10.1007/s12274-021-3398-8},
abstract = {Paramagnetic endohedral metallofullerenes with well protected unpaired spin have potential applications in molecular-scale qubit processing and magnetoreception system. In this study, a paramagnetic metallofullerene Sc3C2@C80 dimer with covalently bonded two spin centers was synthesized. Electron paramagnetic resonance (EPR) results further revealed the varied spin-nuclei couplings and paramagnetic property for Sc3C2@C80 dimer. Briefly, the Sc3C2@C80 dimer in toluene solution shows EPR hyperfine splittings originating from the spin-Sc couplings. However, the Sc3C2@C80 dimer in solid state shows the disappearance of hyperfine structure and a single EPR signal caused by its two-spin-center structure. The transformation of EPR signals can be further finely modulated by controlling the dynamic motion of Sc3C2@C80 dimer in chloronaphthalene. The Sc3C2@C80 dimer with two spin centers possesses varied paramagnetic properties, demonstrating its potential as new magnetic material.}
}