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	hartrees
Energy at 0K	-264.342632
Energy at 298.15K	-264.346389
HF Energy	-263.665974
Nuclear repulsion energy	123.092519

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3903	3677	13.21
2	A₁	1891	1782	616.24
3	A₁	1329	1252	31.45
4	A₁	1009	951	20.78
5	A₁	555	523	5.93
6	A₂	527	497	0.00
7	B₁	805	758	67.78
8	B₁	607	572	248.26
9	B₂	3901	3676	193.40
10	B₂	1512	1425	178.80
11	B₂	1209	1139	432.41
12	B₂	611	576	55.19

Atom	y (Å)	z (Å)
C1	0.000	0.100
O2	0.000	1.310
O3	1.089	-0.681
O4	-1.089	-0.681
H5	1.853	-0.091
H6	-1.853	-0.091

	C1	O2	O3	O4	H5	H6
C1		1.2100	1.3399	1.3399	1.8633	1.8633
O2	1.2100		2.2693	2.2693	2.3235	2.3235
O3	1.3399	2.2693		2.1774	0.9657	3.0007
O4	1.3399	2.2693	2.1774		3.0007	0.9657
H5	1.8633	2.3235	0.9657	3.0007		3.7069
H6	1.8633	2.3235	3.0007	0.9657	3.7069

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	H5	106.704	C1	O4	H6	106.704
O2	C1	O3	125.656	O2	C1	O4	125.656
O3	C1	O4	108.688

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

using model chemistry: CCD/6-31+G**

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: CCD/6-31+G**

States and conformations

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