Affiliation: | 1. Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027 (P.R. China), Fax: (+86)?571‐87953189;2. Shanghai Key Laboratory of Magnetic Resonance, Department of Physics, East China Normal University, Shanghai 200062 (P.R. China);3. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P. R. China) |