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	hartrees
Energy at 0K	-375.853553
Energy at 298.15K	-375.857748
HF Energy	-375.853553
Nuclear repulsion energy	232.598747

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3378	3243	0.00
2	A_g	1817	1744	0.00
3	A_g	1409	1352	0.00
4	A_g	1220	1171	0.00
5	A_g	797	765	0.00
6	A_g	580	557	0.00
7	A_g	402	386	0.00
8	A_u	759	729	297.54
9	A_u	481	462	39.54
10	A_u	173	166	3.33
11	B_g	839	806	0.00
12	B_g	758	728	0.00
13	B_u	3382	3246	201.01
14	B_u	1864	1789	233.19
15	B_u	1307	1255	869.29
16	B_u	1222	1173	17.51
17	B_u	664	637	21.22
18	B_u	251	241	73.89

Atom	x (Å)	y (Å)
C1	-0.055	0.761
C2	0.055	-0.761
O3	1.146	1.354
O4	-1.146	-1.354
O5	-1.146	1.316
O6	1.146	-1.316
H7	1.836	0.624
H8	-1.836	-0.624

	C1	C2	O3	O4	O5	O6	H7	H8
C1		1.5257	1.3392	2.3795	1.2241	2.3987	1.8958	2.2560
C2	1.5257		2.3795	1.3392	2.3987	1.2241	2.2560	1.8958
O3	1.3392	2.3795		3.5473	2.2924	2.6692	1.0044	3.5780
O4	2.3795	1.3392	3.5473		2.6692	2.2924	3.5780	1.0044
O5	1.2241	2.3987	2.2924	2.6692		3.4896	3.0613	2.0583
O6	2.3987	1.2241	2.6692	2.2924	3.4896		2.0583	3.0613
H7	1.8958	2.2560	1.0044	3.5780	3.0613	2.0583		3.8781
H8	2.2560	1.8958	3.5780	1.0044	2.0583	3.0613	3.8781

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	O4	112.149	C1	C2	O6	121.070
C1	O3	H7	107.114	C2	C1	O3	112.149
C2	C1	O5	121.070	C2	O4	H8	107.114
O3	C1	O5	126.782	O4	C2	O6	126.782

All results from a given calculation for C₂H₂O₄ (Oxalic Acid)

using model chemistry: HSEh1PBE/3-21G*

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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Number	Element	Mulliken
1	C	0.637
2	C	0.637
3	O	-0.565
4	O	-0.565
5	O	-0.478
6	O	-0.478
7	H	0.406
8	H	0.406

	x	y	z
x	5.982	-0.325	0.000
y	-0.325	3.861	0.000
z	0.000	0.000	1.543

<r²>	135.298
(<r²>)^1/2	11.632

All results from a given calculation for C2H2O4 (Oxalic Acid)

using model chemistry: HSEh1PBE/3-21G*

States and conformations

All results from a given calculation for C₂H₂O₄ (Oxalic Acid)