We report a theoretical study on the photodetachment dynamics of the Cl₂⁻ for the first time. The two-center theoretical model is used to construct the electron wave function after photodetachment from the Cl₂⁻. The two nuclei in the Cl₂⁻ constitute two coherent sources of detached electrons at a given detector plane far from the ion. Nodes and antinodes of detached electron flux distribution are observed, which are induced by the interference effect between two nuclei. In addition, a series of bright and dark interference patterns similar to the photodetachment microscopy appear at the detector plane. The oscillations in the photodetachment cross section (PCS) of Cl₂⁻ can be explained on the basis of the semiclassical open orbit theory. Through calculation of the Fourier transformed PCS, we find a sharp peak corresponding to the detached electron orbit from one nucleus to another. Therefore, this study verifies the connection between the oscillation in the PCS and the detached electron’s orbit. Our work provides a method for studying the photodetachment dynamics of the diatomic molecular anions and can serve as stimuli for future theoretical developments and provoke experimental research of the molecular photodetachment microscopy.

我们报告的氯的光分离动力学理论研究₂ ^-首次。两中心的理论模型被用于从氯构造光致分离后的电子波函数₂ ^- 。的两个核在CL ₂ ^-构成分离的电子的两个相干源在给定的检测器平面远离离子。观察到电子通量分布分离的节点和波腹，这是由两个原子核之间的干扰效应引起的。另外，类似于光分离显微镜的一系列明暗干涉图样出现在探测器平面上。在光剥离截面振荡的Cl（PCS）₂ ^-可以在半经典开放轨道理论的基础上进行解释。通过傅里叶变换的PCS的计算，我们发现了一个与从一个原子核到另一个原子核分离的电子轨道相对应的尖峰。因此，这项研究验证了PCS中的振荡与分离的电子轨道之间的联系。我们的工作提供了一种研究双原子分子阴离子光解离动力学的方法，并且可以刺激未来的理论发展，并激发分子光解离显微镜的实验研究。