Affiliation: | 1. Department of Chemistry, School of Sciences, Tianjin University, Tianjin 300072, People's Republic of China;2. Department of Chemistry, School of Sciences, Tianjin University, Tianjin 300072, People's Republic of ChinaDepartment of Chemistry, School of Sciences, Tianjin University, Tianjin 300072, People's Republic of China;3. Institut für Organische Chemie, Johannes Gutenberg‐Universit?t, Duesbergweg 10‐14, 55099 Mainz, Germany |