Determination of B0 from the upsilon3 Raman band of CD4

The ν3 Raman band of CD4 has been recorded with a resolution of about 0.25 cm-1. This spectrum has been analysed in conjuction with recent high-resolution measurements of the corresponding infra-red band. The following ground-state constants were obtained: B0 = 2.63264 +- 0.00013 cm-1, D0 = 2.74 +- 0.15 x 10-5 cm-1. The upper-state constants have also been revised in minor respects. The final weighted r.m.s. deviation between experimental and theoretical peak wavenumbers is 0.009 cm-1 for 162 Raman lines. (author)