a
State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun, People's Republic of China
E-mail: aimin_ren@yahoo.com
b
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People's Republic of China
c
School of Physics, Northeast Normal University, Changchun, People's Republic of China