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	hartrees
Energy at 0K	-264.620039
Energy at 298.15K	-264.623801
HF Energy	-263.759666
Nuclear repulsion energy	123.348297

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3826	3633	15.92
2	A₁	1861	1767	470.04
3	A₁	1296	1231	30.36
4	A₁	988	938	18.26
5	A₁	548	521	5.46
6	A₂	538	510	0.00
7	B₁	807	766	46.85
8	B₁	609	579	208.23
9	B₂	3824	3631	198.79
10	B₂	1485	1410	144.61
11	B₂	1171	1111	429.01
12	B₂	604	573	49.73

Atom	y (Å)	z (Å)
C1	0.000	0.102
O2	0.000	1.308
O3	1.085	-0.683
O4	-1.085	-0.683
H5	1.836	-0.075
H6	-1.836	-0.075

	C1	O2	O3	O4	H5	H6
C1		1.2062	1.3391	1.3391	1.8445	1.8445
O2	1.2062		2.2672	2.2672	2.2987	2.2987
O3	1.3391	2.2672		2.1707	0.9656	2.9839
O4	1.3391	2.2672	2.1707		2.9839	0.9656
H5	1.8445	2.2987	0.9656	2.9839		3.6721
H6	1.8445	2.2987	2.9839	0.9656	3.6721

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	H5	105.169	C1	O4	H6	105.169
O2	C1	O3	125.855	O2	C1	O4	125.855
O3	C1	O4	108.291

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

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ

States and conformations

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