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	hartrees
Energy at 0K	-264.425731
Energy at 298.15K	-264.429527
HF Energy	-263.713348
Nuclear repulsion energy	123.353563

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3837	3646	7.59
2	A₁	1886	1792	490.51
3	A₁	1334	1268	31.06
4	A₁	996	946	18.02
5	A₁	559	531	5.32
6	A₂	552	524	0.00
7	B₁	813	772	72.75
8	B₁	638	607	258.08
9	B₂	3835	3645	155.94
10	B₂	1500	1425	128.37
11	B₂	1205	1145	499.19
12	B₂	612	582	55.01

Atom	y (Å)	z (Å)
C1	0.000	0.102
O2	0.000	1.309
O3	1.080	-0.681
O4	-1.080	-0.681
H5	1.843	-0.095
H6	-1.843	-0.095

	C1	O2	O3	O4	H5	H6
C1		1.2072	1.3342	1.3342	1.8537	1.8537
O2	1.2072		2.2645	2.2645	2.3174	2.3174
O3	1.3342	2.2645		2.1604	0.9617	2.9814
O4	1.3342	2.2645	2.1604		2.9814	0.9617
H5	1.8537	2.3174	0.9617	2.9814		3.6863
H6	1.8537	2.3174	2.9814	0.9617	3.6863

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	H5	106.561	C1	O4	H6	106.561
O2	C1	O3	125.936	O2	C1	O4	125.936
O3	C1	O4	108.127

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

using model chemistry: MP2/6-311G*

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: MP2/6-311G*

States and conformations

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