Professor Leyong Wang visited Hunan University of Science and Technology in Xiangtan on January 4, 2019 and gave an academic report. Thank you for the invitation to the key experiments of the Ministry of Education of Theoretical Organic Chemistry and Functional Molecules. Special thanks to the laboratory directors Professor Tang Zilong and Professor He Weimin for their arrangements. Development of the School of Chemistry and Chemical Engineering, Hunan University of Science and Technology. Visiting Xiangtan, a place with outstanding people, really feels different!