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In this work, a 4-h inorganic chemistry experiment was designed. Herein, an aggregation-induced emission (AIE) copper iodine cluster was synthesized and used for the construction of long-afterglow emission material. Students can learn about the synthesis of cluster compound and the growth of crystal, and deepen the understanding of coordination compound, cluster compound, enantiomers, and hybrid orbital, among others. Meanwhile, by introducing AIE, which is a research hotspot, and long-afterglow emission, which is an interesting chemical phenomenon, the enthusiasm in learning of students will be aroused. Combining with classroom instruction and literature reading, students can also understand the mechanism behind the experiment. This experiment is compact, and the reagents and instruments used are simple and cost-effective, making it suitable for promotion in undergraduate experiment of chemistry or other related majors. This experiment fitted well with the requirement about "cluster compound" of "synthesis and preparation of compounds" in "chemical experiment teaching suggestions for chemistry majors," which was issued by the national instruction committee of higher chemistry education of ministry of education. This experiment enriched the content of traditional inorganic chemistry experiment.

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