1. Jilin Province Key Laboratory of Organic Functional Molecular Design and Synthesis, Department of Chemistry; Northeast Normal University; Changchun 130024 People's Republic of China
2. College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China