Integrated infrared intensities and transition moments in SF6

Abstract

The integrated infrared band intensities of the fundamental vibrational modes in SF₆ have been measured by the Wilson–Wells–Penner–Weber method. The results are 1361±34 km mole⁻¹ for the fundamental at 948 cm⁻¹, and 74±2 km mole⁻¹ for the fundamental at 615 cm⁻¹. The transition moments derived from these measurements are 0.437±0.005 D for the 948 cm⁻¹ fundamental and 0.126±0.002 D for the 615 cm⁻¹ band. The transition moment was also derived from single line strengths in the 948 cm⁻¹ band and found to be 0.42±0.03 D, in good agreement with the value found from band intensities.