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	hartrees
Energy at 0K	-263.972762
Energy at 298.15K	-263.976400
HF Energy	-263.501133
Nuclear repulsion energy	119.611341

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3644	3462	0.40
2	A₁	1725	1639	365.87
3	A₁	1284	1220	40.64
4	A₁	919	873	21.57
5	A₁	527	501	7.03
6	A₂	516	490	0.00
7	B₁	719	683	65.48
8	B₁	603	573	358.95
9	B₂	3643	3461	146.66
10	B₂	1484	1410	92.49
11	B₂	1095	1040	512.40
12	B₂	581	552	51.00

Atom	y (Å)	z (Å)
C1	0.000	0.109
O2	0.000	1.355
O3	1.116	-0.700
O4	-1.116	-0.700
H5	1.924	-0.143
H6	-1.924	-0.143

	C1	O2	O3	O4	H5	H6
C1		1.2465	1.3783	1.3783	1.9405	1.9405
O2	1.2465		2.3389	2.3389	2.4383	2.4383
O3	1.3783	2.3389		2.2320	0.9820	3.0910
O4	1.3783	2.3389	2.2320		3.0910	0.9820
H5	1.9405	2.4383	0.9820	3.0910		3.8485
H6	1.9405	2.4383	3.0910	0.9820	3.8485

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	H5	109.452	C1	O4	H6	109.452
O2	C1	O3	125.936	O2	C1	O4	125.936
O3	C1	O4	108.128

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

using model chemistry: MP2=FULL/6-31G

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=FULL/6-31G

States and conformations

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