Table 7. Comparison between Computed (for N = 3 and N = 6) and Experimental in ^a.

freq	symm	N = 3	N = 6	phase II	phase III	phase IV
517.5	T2g	1.98	1.55	2.73 ± 0.47	2.17 ± 0.61	1.18 ± 0.22
662.4	Eg	1.92	1.65	3.83 ± 0.31	3.13 ± 0.04	1.58 ± 0.08
771.2	A1g	2.38	1.87	4.64 ± 0.33	3.55 ± 0.22	1.86 ± 0.08

^aThe experimental data refer to Raman measurements by Rademacher et al.²³ for the different SF₆ phases at high pressure.