1. a Key Laboratory of Molecular and Nano Probes, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Ministry of Education , Engineering Research Center of Pesticide and Medicine Intermediate Clean Production, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University , Jinan , P.R. China
2. b Department of Chemistry , University of California , Davis , CA , USA
3. c Cadre School of Shandong Bureau of Quality and Technical Supervision , Jinan , P.R. China