Author/Authors :
Wang، نويسنده , , Tingting and Zheng، نويسنده , , Xianfeng and Li، نويسنده , , Chunyan and Chen، نويسنده , , Yang، نويسنده ,
Abstract :
The (2 + 1) resonance-enhanced multiphoton ionization (REMPI) spectra of SF radicals have been recorded in the single-photon wavelength region of 271–286 nm for the first time. Four regular vibrational bands were observed and assigned as the transition by two-photon from the ground state to a 2Δ Rydberg state. The 2Δ Rydberg state arises from one-electron excitation from the 3π orbital of SF ground state to a 4pσ Rydberg orbital, which converging to the first excited ionic state (1Δ). The term value Te, spin–orbit coupling constant A, vibrational frequency and rotational constants for the 2Δ Rydberg state are determined.
