亚稳态He(2~3S)、Ar(~3P_(0,2))原子与C_2H_3CN分子传能反应

• 作 者: 胡义华 王小涓 詹业宏 储焰南 李书涛 曹德兆 郭敬忠 刘传朴 顾月姝
• 机 构: 广东工业大学数理系!广州510090,广东工业大学数理系!广州510090,广东工业大学数理系!广州510090,中国科学院安徽光学机械研究所激光光谱学开放实验室!合肥230031,中国科学院安徽光学
• 出 处: 物理化学学报
• 发表日期: 1996年11期
• 关键词: Ar C_2H_3CN He 化学发光 能量转移反应 亚稳态 电子态 布居 发射谱 反应产物

Excited radicals CN(A, B), CH(A), H(n=3,4,5) were produced in the energy transfer reaction of inetastable He(23S)、 Ar(3P0,2) atoms with C2H3CN molecule by using discharge-flowing afterglow technique. The emission spectra of products were analysed, the results showed that vibrational populations of CN (B, v) were irregular in He(23S)+C2H3CN reaction and the mechanism was that two energy levels of CN(B, v=0,14) were coupled by the other two of CN(A, v=10,30). The relative vibrational population of CN (A, B, v), except the energy level of CN (B, v=14),decreased with the increase quantum number v of vibration which was the statistical population. The nascent rotational temperature Tr of the product CH (A, v=0) was 2600K.The formation mechamism of excited products was suggested as

Excited radicals CN (A, B), CH (A), H (n = 3,4,5) were produced in the energy transfer reaction of inetastable He (23S), Ar (3P0,2) The emission spectra of products were analyzed, the results showed that vibrational populations of CN (B, v) were irregular in He (23S) + C2H3CN reaction and the mechanism was that two energy levels of CN (B, v = 0,14) were coupled by the other two of CN (A, v = 10,30). The relative vibrational population of CN (A, B, v) ), decreased with the increase quantum number v of vibration which was the statistical population. The nascent rotational temperature Tr of the product CH (A, v = 0) was 2600K.The formation mechamism of excited products was suggested as