Detection of O(PJ3) atoms formed by reaction, Al+O2→ AlO+O under crossed-beam condition
作者:Masayuki Ishida、Tomohiko Higashiyama、Yoshiteru Matsumoto、Kenji Honma
DOI:10.1063/1.1924387
日期:2005.5.22
oxygen atoms formed by the reaction, Al+O(2)--> AlO+O. The measurements were carried out under the crossed-beam condition at 12.2 kJmol of collision energy. The relative populations of three spin-orbit states of O((3)P(J)) were determined to be 3.8, 1.0, and 0.2 for J=2, 1, and 0, respectively. They show nonstatistical populations, i.e., more population in O((3)P(2)) and less population in O((3)P(0))
真空紫外激光诱导荧光技术被用来检测反应中形成的氧原子,Al + O(2)-> AlO + O。在交叉光束条件下以12.2 kJmol的碰撞能量进行测量。对于J = 2、1和0,确定O((3)P(J))的三个自旋轨道状态的相对种群分别为3.8、1.0和0.2。他们显示的是非统计人口,即O((3)P(2))中的人口多于O((3)P(0))的人口少于统计预期。这些种群对于两个铝束条件几乎相同,其中两个自旋轨道状态的铝(2)P(1/2)和(2)P(3/2)的相对浓度不同。这些结果表明,Al与O(2)的反应是通过中间络合物进行的,在该络合物中失去了自旋轨道状态的记忆。