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	hartrees
Energy at 0K	-264.695596
Energy at 298.15K	-264.690995
HF Energy	-263.642556
Nuclear repulsion energy	125.565142

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	4100	4100	30.71
2	A₁	2034	2034	718.94
3	A₁	1436	1436	40.21
4	A₁	1087	1087	12.75
5	A₁	602	602	7.46
6	A₂	601	601	0.00
7	B₁	914	914	145.51
8	B₁	656	656	278.57
9	B₂	4098	4098	222.99
10	B₂	1628	1628	230.54
11	B₂	1324	1324	464.84
12	B₂	670	670	72.24

Atom	y (Å)	z (Å)
C1	0.000	0.094
O2	0.000	1.278
O3	1.074	-0.662
O4	-1.074	-0.662
H5	1.834	-0.100
H6	-1.834	-0.100

	C1	O2	O3	O4	H5	H6
C1		1.1843	1.3127	1.3127	1.8439	1.8439
O2	1.1843		2.2170	2.2170	2.2935	2.2935
O3	1.3127	2.2170		2.1472	0.9454	2.9612
O4	1.3127	2.2170	2.1472		2.9612	0.9454
H5	1.8439	2.2935	0.9454	2.9612		3.6674
H6	1.8439	2.2935	2.9612	0.9454	3.6674

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	H5	108.384	C1	O4	H6	108.384
O2	C1	O3	125.131	O2	C1	O4	125.131
O3	C1	O4	109.739

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

using model chemistry: CBS-Q

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: CBS-Q

States and conformations

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