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	hartrees
Energy at 0K	-264.664160
Energy at 298.15K	-264.667889
HF Energy	-263.758564
Nuclear repulsion energy	122.939177

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	3811	3693
2	A₁	1830	1774
3	A₁	1294	1254
4	A₁	965	935
5	A₁	541	524
6	A₂	528	512
7	B₁	792	768
8	B₁	601	583
9	B₂	3808	3691
10	B₂	1474	1429
11	B₂	1162	1126
12	B₂	594	575

Atom	y (Å)	z (Å)
C1	0.000	0.102
O2	0.000	1.312
O3	1.090	-0.685
O4	-1.090	-0.685
H5	1.839	-0.076
H6	-1.839	-0.076

	C1	O2	O3	O4	H5	H6
C1		1.2102	1.3443	1.3443	1.8478	1.8478
O2	1.2102		2.2754	2.2754	2.3043	2.3043
O3	1.3443	2.2754		2.1791	0.9661	2.9915
O4	1.3443	2.2754	2.1791		2.9915	0.9661
H5	1.8478	2.3043	0.9661	2.9915		3.6784
H6	1.8478	2.3043	2.9915	0.9661	3.6784

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	H5	105.036	C1	O4	H6	105.036
O2	C1	O3	125.856	O2	C1	O4	125.856
O3	C1	O4	108.289

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

using model chemistry: MP4/cc-pVTZ

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: MP4/cc-pVTZ

States and conformations

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