1. Key Laboratory of Resource Fine-Processing and Advanced Materials, Universities of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha, Hunan 410081, China, and Research Computing Center, University of North Carolina, Chapel Hill, North Carolina 27599-3420