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	hartrees
Energy at 0K	-262.565488
Energy at 298.15K	-262.569211
HF Energy	-262.165178
Nuclear repulsion energy	121.502575

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3702	3449	2.72
2	A₁	1865	1738	380.85
3	A₁	1340	1248	56.31
4	A₁	974	907	15.24
5	A₁	547	510	7.37
6	A₂	514	478	0.00
7	B₁	786	732	105.32
8	B₁	595	554	319.34
9	B₂	3699	3446	110.72
10	B₂	1568	1461	103.70
11	B₂	1133	1055	496.79
12	B₂	615	573	68.92

Atom	y (Å)	z (Å)
C1	0.000	0.109
O2	0.000	1.325
O3	1.102	-0.688
O4	-1.102	-0.688
H5	1.907	-0.125
H6	-1.907	-0.125

	C1	O2	O3	O4	H5	H6
C1		1.2162	1.3597	1.3597	1.9208	1.9208
O2	1.2162		2.2944	2.2944	2.3950	2.3950
O3	1.3597	2.2944		2.2045	0.9817	3.0610
O4	1.3597	2.2944	2.2045		3.0610	0.9817
H5	1.9208	2.3950	0.9817	3.0610		3.8132
H6	1.9208	2.3950	3.0610	0.9817	3.8132

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	H5	109.180	C1	O4	H6	109.180
O2	C1	O3	125.840	O2	C1	O4	125.840
O3	C1	O4	108.320

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

using model chemistry: CID/3-21G

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: CID/3-21G

States and conformations

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