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	hartrees
Energy at 0K	-619.423910
Energy at 298.15K	-619.425898
HF Energy	-618.907449
Nuclear repulsion energy	180.175728

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁'	1018	979	0.00
2	A₂"	459	441	39.80
3	E'	1356	1303	129.72
3	E'	1356	1303	129.72
4	E'	518	498	30.24
4	E'	518	498	30.24

Atom	x (Å)	y (Å)
S1	0.000	0.000
O2	0.000	1.453
O3	1.259	-0.727
O4	-1.259	-0.727

	S1	O2	O3	O4
S1		1.4534	1.4534	1.4534
O2	1.4534		2.5173	2.5173
O3	1.4534	2.5173		2.5173
O4	1.4534	2.5173	2.5173

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/3-21G*

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/3-21G*

States and conformations

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