Abstract
The geometric and electronic structures of rare earth metallofullerenes Eu@C72 were investigated using density functional theory (DFT) within a generalized gradient approximation (GGA). The geometric optimization revealed that the most favorable endohedral site for Eu is off-center along the C2 axis on the σv plane pointing to the (5, 5) bond at the fusion of two pentagons. Calculations for electronic structures show that two 6s electrons in Eu transfer to the lowest-unoccupied-molecular orbitals of C72 while 4f electrons remain in Eu.
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Acknowledgments
We thank the Key Laboratory of Coal Science & Technology (Taiyuan University of Technology), Ministry of Education, for the software. This research was financially supported by State Basic Research Development Program of China (973 program) (Grant No.2004CB217808), National Natural Science Foundation of China (Grant No.90306014, 20671068), Natural Science Foundation of Shanxi Province (Grant No.20050018 and 2006011053)
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Chi, M., Zhang, Z., Han, P. et al. Geometric and electronic structures of new endohedral fullerenes: Eu@C72 . J Mol Model 14, 465–470 (2008). https://doi.org/10.1007/s00894-008-0304-1
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DOI: https://doi.org/10.1007/s00894-008-0304-1