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	hartrees
Energy at 0K	-264.430092
Energy at 298.15K	-264.433835
HF Energy	-263.696371
Nuclear repulsion energy	122.358079

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3790	3674	12.42
2	A₁	1818	1762	510.81
3	A₁	1297	1257	24.87
4	A₁	968	938	20.36
5	A₁	544	527	5.58
6	A₂	538	521	0.00
7	B₁	791	766	41.74
8	B₁	607	588	208.10
9	B₂	3788	3672	195.60
10	B₂	1455	1410	119.64
11	B₂	1168	1132	453.44
12	B₂	595	577	42.96

Atom	y (Å)	z (Å)
C1	0.000	0.105
O2	0.000	1.322
O3	1.091	-0.689
O4	-1.091	-0.689
H5	1.852	-0.086
H6	-1.852	-0.086

	C1	O2	O3	O4	H5	H6
C1		1.2174	1.3496	1.3496	1.8618	1.8618
O2	1.2174		2.2884	2.2884	2.3266	2.3266
O3	1.3496	2.2884		2.1825	0.9707	3.0043
O4	1.3496	2.2884	2.1825		3.0043	0.9707
H5	1.8618	2.3266	0.9707	3.0043		3.7039
H6	1.8618	2.3266	3.0043	0.9707	3.7039

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	H5	105.553	C1	O4	H6	105.553
O2	C1	O3	126.041	O2	C1	O4	126.041
O3	C1	O4	107.917

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

using model chemistry: MP2=FULL/aug-cc-pVDZ

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/aug-cc-pVDZ

States and conformations

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