1. Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710119, People’s Republic of China
2. Institute of Molecular Science and Applied Chemistry, School of Chemistry, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, People’s Republic of China
3. Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Tsinghua University, Beijing 100084, People’s Republic of China
4. Fundamental Science Center of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, People’s Republic of China