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	hartrees
Energy at 0K	-264.463295
Energy at 298.15K	-264.467015
HF Energy	-263.696318
Nuclear repulsion energy	122.257755

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	3789	3680
2	A₁	1813	1761
3	A₁	1306	1269
4	A₁	959	931
5	A₁	540	524
6	A₂	525	510
7	B₁	787	765
8	B₁	595	578
9	B₂	3786	3677
10	B₂	1460	1418
11	B₂	1172	1138
12	B₂	592	575

Atom	y (Å)	z (Å)
C1	0.000	0.104
O2	0.000	1.321
O3	1.094	-0.689
O4	-1.094	-0.689
H5	1.855	-0.086
H6	-1.855	-0.086

	C1	O2	O3	O4	H5	H6
C1		1.2168	1.3515	1.3515	1.8649	1.8649
O2	1.2168		2.2884	2.2884	2.3286	2.3286
O3	1.3515	2.2884		2.1888	0.9703	3.0104
O4	1.3515	2.2884	2.1888		3.0104	0.9703
H5	1.8649	2.3286	0.9703	3.0104		3.7102
H6	1.8649	2.3286	3.0104	0.9703	3.7102

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	H5	105.702	C1	O4	H6	105.702
O2	C1	O3	125.925	O2	C1	O4	125.925
O3	C1	O4	108.150

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

using model chemistry: CCSD(T)=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: CCSD(T)=FULL/aug-cc-pVDZ

States and conformations

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