1. State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
2. Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern CH-3012, Switzerland
3. Theoretical Chemistry, VU Amsterdam, De Boelelaan 1083, HV Amsterdam 1081, The Netherlands
4. Department of Physics, Xiamen University, Xiamen, 361005, China
5. Key Laboratory for Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing, 100871, China