CO(α~3П)与CN(X^2∑^+)的能量转移反应  

Energy Transfer Reaction of Metastable CO(a~П) Molecule with CN Radical

作　　者：倪晋智 李书涛[1] 储焰南[1] 胡义华[1] 曹德兆[1] 

机构地区：[1]中国科学院安徽光机所激光光谱学实验室,合肥230031

出　　处：《物理化学学报》1994年第1期19-21,共3页Acta Physico-Chimica Sinica

摘　　要：研究亚稳态分子与小分子、自由基的传能反应是近年来比较活跃的课题,它主要是利用N_2(A^3∑_u^+,6.12eV)和CO(α~3Ⅱ,6.02.eV)作为共振传能的能量载体,已经观察到N_2(A)、CO(α)与OH,NO,CS,SO,S_2等能量转移过程。 CN自由基作为一种红外激光介质,已得到了广泛的研究。为了实现其近紫外辐射跃迁CN(B-X),可以用光解、电子轰击或亚稳态惰性气体原子与含烃化合物碰撞传能,获得CN(B^2∑^+)的激发态碎片,而利用亚稳态CO(α)分子与CN(X)进行能量转移反应得到CN(B)则是本文首次报导。Energy-transfer reaction from metastable CO(a^3П) molecule to CN radical has been studied in a room-temperature flow reactor. The CN (B - X, △v = 0, ±1, ±2) violet emission bands were obtained. The △v=0 sequence of CN (B) were analyzed by computer simulation. The vibrational temperature is 3400K. By using the reference reaction CO(a)+NO, the formation rate constant of CN(B) has been measured, k_(CN)(B)= 1.1×10^(-11)cm^3·molecule^(-1)·s^(-1).

关 键 词：CO(a) 能量转移 氰基 亚稳态分子 

分 类 号：O613.71[理学—无机化学]