1. School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
2. Institute of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
3. Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, Dresden 01328, Germany
4. Theoretical Chemistry, Technische Universität Dresden, Mommsenstrasse 13, Dresden 01062, Germany