At the invitation of Professor Wang leyong, Professor Liu Yu of Nankai University (Tianjin) visited Nanjing University and the research group on May 22. Professor Liu is committed to the research of crown ether. At 3:00 p.m. on the 22nd, Professor Liu delivered a speech entitled crown ether compounds and molecular devices with high bonding ability in the lecture hall 104 of Fei Yimin building It has a good reference and demonstration for the macrocyclic crown ether system of our research group, broadened the thinking of the students and gave the whole group a new thinking direction. During the report period, Professor Liu Yu explained very patiently, humorous and funny, interacted with the audience from time to time, listened carefully to everyone's questions, and carefully answered them one by one.
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