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	hartrees
Energy at 0K	-264.014059
Energy at 298.15K	-264.017607
HF Energy	-263.557771
Nuclear repulsion energy	118.774309

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3654	3527	0.00
2	A₁	1671	1613	449.29
3	A₁	1259	1215	38.24
4	A₁	890	859	27.28
5	A₁	507	489	6.52
6	A₂	498	481	0.00
7	B₁	711	686	86.95
8	B₁	586	566	353.52
9	B₂	3652	3525	154.96
10	B₂	1425	1375	73.41
11	B₂	1058	1021	544.67
12	B₂	546	527	54.69

Atom	y (Å)	z (Å)
C1	0.000	0.114
O2	0.000	1.367
O3	1.121	-0.706
O4	-1.121	-0.706
H5	1.945	-0.162
H6	-1.945	-0.162

	C1	O2	O3	O4	H5	H6
C1		1.2534	1.3888	1.3888	1.9646	1.9646
O2	1.2534		2.3566	2.3566	2.4744	2.4744
O3	1.3888	2.3566		2.2429	0.9868	3.1144
O4	1.3888	2.3566	2.2429		3.1144	0.9868
H5	1.9646	2.4744	0.9868	3.1144		3.8903
H6	1.9646	2.4744	3.1144	0.9868	3.8903

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	H5	110.442	C1	O4	H6	110.442
O2	C1	O3	126.149	O2	C1	O4	126.149
O3	C1	O4	107.703

All results from a given calculation for H₂CO₃ (Carbonic acid)

using model chemistry: MP2/SDD

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 H2CO3 (Carbonic acid)

using model chemistry: MP2/SDD

States and conformations

All results from a given calculation for H₂CO₃ (Carbonic acid)