1. School of Chemistry and Chemical Engineering; Hunan University of Science and Technology, Xiangtan; Hunan 411201 China
2. College of Chemistry, Chemical and Environmental Engineering; Henan University of Technology, Zhengzhou; Henan 450001 PR China
3. Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education; Hunan University of Science and Technology, Xiangtan; Hunan 411201 PR China