On February 21, the Institute of Chemistry of the Chinese Academy of Sciences announced that Comrade Zhu Qihe, a famous physical chemist in China, academician of the Chinese Academy of Sciences, and researcher of the Institute of Chemistry of the Chinese Academy of Sciences, died at 9:18 on February 20, 2024 in Beijing at the age of 100 due to ineffective medical treatment.
*:Light**.
According to public information, Zhu Qihe, a physical chemist, is mainly engaged in the study of molecular reaction kinetics. He was born in Beijing on July 12, 1924. He graduated from the Department of Chemical Engineering of ** University in 1947 and received his Ph.D. in Chemistry from the University of California, Berkeley in 1951. In 1995, he was elected as an academician of the Chinese Academy of Sciences.
Zhu Qihe has successively developed six large-scale experimental devices using molecular beams and lasers of international standards, won the first prize and the second prize of the Chinese Academy of Sciences Science and Technology Progress Award, and used these devices to carry out various scientific research work. In the study of molecular photolysis, the photolysis laws of iodoalkanes, haloalkenes and ketones were obtained, and the microscopic reaction mechanism was proposed. In the study of clusters, a new class of hydrogen-containing carbon clusters was discovered for the first time, and a cylindrical structure was proposed. A series of binary clusters of metal and sulfur were also discovered, and their composition, stability, photolysis and formation kinetics were obtained. He also used time-of-flight mass spectrometry and photoelectron spectroscopy to study the multiphoton ionization and dissociation kinetics of molecules. Using time-resolved infrared emission spectroscopy, the vibrational energy transfer in free radical reactions and molecular collisions was studied. Using the new femtosecond laser system, the vibrational relaxation of molecules in the excited state of electrons was studied.
*: Institute of Chemistry, Chinese Academy of Sciences.