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	hartrees
Energy at 0K	-623.924694
Energy at 298.15K	-623.928439
HF Energy	-623.180785
Nuclear repulsion energy	190.471415

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A'	3617	3478
2	A'	1267	1218
3	A'	1140	1096
4	A'	765	736
5	A'	473	454
6	A'	445	428
7	A'	308	296
8	A"	3615	3476
9	A"	1133	1090
10	A"	769	739
11	A"	433	417
12	A"	160	154

Atom	x (Å)	y (Å)	z (Å)
S1	0.302	0.350	0.000
O2	-1.047	0.967	0.000
O3	0.302	-0.717	1.275
O4	0.302	-0.717	-1.275
H5	-0.639	-0.933	1.471
H6	-0.639	-0.933	-1.471

	S1	O2	O3	O4	H5	H6
S1		1.4830	1.6621	1.6621	2.1664	2.1664
O2	1.4830		2.5057	2.5057	2.4373	2.4373
O3	1.6621	2.5057		2.5500	0.9845	2.9109
O4	1.6621	2.5057	2.5500		2.9109	0.9845
H5	2.1664	2.4373	0.9845	2.9109		2.9428
H6	2.1664	2.4373	2.9109	0.9845	2.9428

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
S1	O3	H5	107.087	S1	O4	H6	107.087
O2	S1	O3	105.491	O2	S1	O4	105.491
O3	S1	O4	100.189

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

using model chemistry: MP4=FULL/6-31G*

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: MP4=FULL/6-31G*

States and conformations

Conformer 1 (CS)

Conformer 2 (CS)

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