Photoionization Studies of BF₃ Using Synchrotron Radiation

The photoionization and photodissociation of BF₃ were investigated under the supersonic beam conditions by using synchrotron radiation light source in the range of 50 ~82 nm.The PIE curves of BF₃⁺ and BF₂⁺ were obtained, in which some series of autoionization structures were observed in the range of 50~80 nm It is suggested that these structures are due to the transition from BF₃ ground state to ns, np and nd Rydberg states. And the spectral parameters about these Rydberg stabes were obtained by analysising these spectra. The dlynamics of photoionization and photodissociation of BF₃ was discussed by comparing the difference of BF₃⁺ and BF₂⁺ PIE curves. Photoionization is the main process for ns Rydberg series of BF₃ molecule. Photodissociation is the main process for np, nd Rydberg series of BF₃ molecule.