使用反射式飞行时间质谱仪,得到 Ca~+-pyridine 络合物在412～ 690nm 的光解谱.从谱图可见,反应有两个通道,一个是 Ca~+与 pyridine 分子解离开的非反应淬灭过程,这个通道在所有波段都有,且占优势；生成产物 Ca~+NH_2的通道不仅所占比例小,且在530～590nm 波段关闭. 作为激光波长函数的 Action spectrum 显示出明显的峰,对应于络合物的跃迁.反应的分支比也支持了光解谱图的结论. The photolysis spectra of Ca ~ + -pyridine complex at 412 ~ 690nm were obtained by using a time of flight mass spectrometer. It can be seen from the chromatogram that there are two channels in the reaction, one is the non-reaction between Ca ~ + and pyridine molecules Quenching process, this channel has and predominates in all the bands, and the Ca ~ + NH_2 channel not only accounts for a small proportion but also in the 530 ~ 590nm band.The Action spectrum as a function of laser wavelength shows obvious peaks , Corresponding to the transition of the complex.The branching ratio of the reaction also supports the conclusion of the photolysis spectrogram.