Pure rotational Raman spectrum of XeF2

Abstract

The pure rotational Raman spectrum of XeF₂ has been recorded photographically with a reciporcal linear discpersion of 1.4 cm^–1 mm^–1 and analysed to yield the following values of the rotational constants and bond length : B₀= 0.113 27 ± 0.000 01 cm^–1; 10⁸D₀= 2.1 ± 0.2 cm^–1; r₀= 197.91 ± 0.01 pm.

These B₀ and r₀ values are much more precise than earlier infrared values. The B₀ values does not overlap with the earlier infrared value and possible reasons for this discrepancy are discussed.