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本文首次报导Hel(21.22eV)紫外光电子能谱(UPS)用于ClONO_2的光化学反应研究.253.7nm紫外光光解ClONO_2的产物随光解时间的不同而异:光解15min后,产物为Cl_2,O_2和NO_2;光解25min和35min后,CINO的UPS谱峰清晰地显现在光解产物的UPS谱图中.从而提出了253.7nm 紫外光光解ClONO_2的反应机制.
In this paper, the first report of Hel (21.22eV) UV photoelectron spectroscopy (UPS) is used to study the photochemical reaction of ClONO_2. The photolysis reaction of ClONO_2 with 253.7nm UV light varies with photolysis time. After photolysis for 15min, O_2 and NO_2 photolysis for 25min and 35min, the UPS peaks of CINO clearly appeared in the UPS spectrum of photolysis products, and the reaction mechanism of ClONO_2 by 253.7nm UV photodissociation was proposed.