1. Department
of Chemistry, University of South Dakota, Vermillion, South Dakota 57069, United States
2. Shenyang
Institute of Automation, Guangzhou, Chinese Academy of Sciences, Guangzhou 511458, China
3. Center
for Computationally Assisted Science and Technology, North Dakota State University, Fargo, North Dakota 58102, United States
4. Department
of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States