Department of Chemistry;
Huazhong University of Science and Technology;
Wuhan 430074;
China;
Key Laboratory of Cellulose and Lignocellulosics Chemistry;
Guangzhou Institute of Chemistry;
Chinese Academy of Sciences;
Guangzhou 510650;
China;
Department of Physics;
Wuhan University;
Wuhan 430072;
China;
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics;
Wuhan Institute of Physics and Mathematics;
Chinese Academy of Sciences;
Wuhan 430071;
China;