The fluorescence excitation spectrum of XeF cooled in a supersonic expansion with helium has been observed for the wavelength region 2860 to 3205 Å. The cold spectrum displays well-resolved rotational structure for seven of the XeF isotopic species. Analysis of this rotational structure is reported for υ′ = 16-21 in the B̃ (Ω = 1/2) state and for υ″ = 0 and 1 in the X̃ 2∑+ state. Vibrational intervals have been measured for individual XeF isotopes with an accuracy of ±0.50 cm-1 for vibrational levels υ′ = 11-22 and ±0.37 cm-1 for υ″ = 0-2.
|Original language||English (US)|
|Number of pages||9|
|Journal||The Journal of Chemical Physics|
|Publication status||Published - 1976|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics