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	hartrees
Energy at 0K	-622.150711
Energy at 298.15K	-622.151844
HF Energy	-621.624173
Nuclear repulsion energy	159.216178

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁'	685	660	0.00
2	A₂"	258	248	25.52
3	E'	791	763	33.04
3	E'	791	763	33.05
4	E'	326	314	13.85
4	E'	326	314	13.85

Atom	x (Å)	y (Å)
S1	0.000	0.000
O2	0.000	1.645
O3	1.424	-0.822
O4	-1.424	-0.822

	S1	O2	O3	O4
S1		1.6447	1.6447	1.6447
O2	1.6447		2.8487	2.8487
O3	1.6447	2.8487		2.8487
O4	1.6447	2.8487	2.8487

atom1	atom2	atom3	angle		atom1	atom2	atom3	angle
O2	S1	O3	120.000		O2	S1	O4	120.000
O3	S1	O4	120.000

All results from a given calculation for SO₃ (Sulfur trioxide)

using model chemistry: QCISD/6-31G

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for SO3 (Sulfur trioxide)

using model chemistry: QCISD/6-31G

States and conformations

All results from a given calculation for SO₃ (Sulfur trioxide)