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	hartrees
Energy at 0K	-624.111704
Energy at 298.15K	-624.115615
HF Energy	-623.248804
Nuclear repulsion energy	194.914710

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3795	3595	116.03
2	A'	1287	1219	148.95
3	A'	1152	1091	14.14
4	A'	819	776	135.61
5	A'	501	475	15.75
6	A'	450	426	128.55
7	A'	342	324	28.49
8	A"	3791	3592	40.72
9	A"	1132	1072	65.97
10	A"	823	780	310.12
11	A"	464	439	61.47
12	A"	169	160	20.39

Atom	x (Å)	y (Å)	z (Å)
S1	0.297	0.340	0.000
O2	-1.029	0.941	0.000
O3	0.297	-0.698	1.244
O4	0.297	-0.698	-1.244
H5	-0.628	-0.899	1.447
H6	-0.628	-0.899	-1.447

	S1	O2	O3	O4	H5	H6
S1		1.4559	1.6198	1.6198	2.1171	2.1171
O2	1.4559		2.4475	2.4475	2.3743	2.3743
O3	1.6198	2.4475		2.4873	0.9679	2.8519
O4	1.6198	2.4475	2.4873		2.8519	0.9679
H5	2.1171	2.3743	0.9679	2.8519		2.8932
H6	2.1171	2.3743	2.8519	0.9679	2.8932

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	O3	H5	107.093	S1	O4	H6	107.093
O2	S1	O3	105.332	O2	S1	O4	105.332
O3	S1	O4	100.314

All results from a given calculation for H₂SO₃ (Sulfurous acid)

using model chemistry: QCISD/6-31G(2df,p)

States and conformations

Conformer 1 (CS)

Conformer 2 (CS)

	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 H2SO3 (Sulfurous acid)

using model chemistry: QCISD/6-31G(2df,p)

States and conformations

Conformer 1 (CS)

Conformer 2 (CS)

All results from a given calculation for H₂SO₃ (Sulfurous acid)