1. College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
2. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
3. School of Physical Science, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
4. College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, P. R. China