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	hartrees
Energy at 0K	-371.299525
Energy at 298.15K	-371.302983
HF Energy	-371.299525
Nuclear repulsion energy	228.639936

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	4221	3447	0.00
2	A_g	2153	1758	0.00
3	A_g	1633	1333	0.00
4	A_g	1447	1182	0.00
5	A_g	885	722	0.00
6	A_g	600	490	0.00
7	A_g	371	303	0.00
8	A_u	566	462	161.19
9	A_u	447	365	69.38
10	A_u	119	98	0.96
11	B_g	821	670	0.00
12	B_g	555	453	0.00
13	B_u	4222	3447	14.83
14	B_u	2135	1743	108.02
15	B_u	1572	1284	367.55
16	B_u	1333	1088	102.90
17	B_u	668	545	29.40
18	B_u	169	138	27.53

Atom	x (Å)	y (Å)
C1	-0.061	0.780
C2	0.061	-0.780
O3	1.146	1.447
O4	-1.146	-1.447
O5	-1.146	1.330
O6	1.146	-1.330
H7	1.824	0.723
H8	-1.824	-0.723

	C1	C2	O3	O4	O5	O6	H7	H8
C1		1.5648	1.3796	2.4776	1.2169	2.4313	1.8859	2.3170
C2	1.5648		2.4776	1.3796	2.4313	1.2169	2.3170	1.8859
O3	1.3796	2.4776		3.6925	2.2960	2.7773	0.9913	3.6791
O4	2.4776	1.3796	3.6925		2.7773	2.2960	3.6791	0.9913
O5	1.2169	2.4313	2.2960	2.7773		3.5122	3.0318	2.1625
O6	2.4313	1.2169	2.7773	2.2960	3.5122		2.1625	3.0318
H7	1.8859	2.3170	0.9913	3.6791	3.0318	2.1625		3.9245
H8	2.3170	1.8859	3.6791	0.9913	2.1625	3.0318	3.9245

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	O4	114.444	C1	C2	O6	121.352
C1	O3	H7	104.195	C2	C1	O3	114.444
C2	C1	O5	121.352	C2	O4	H8	104.195
O3	C1	O5	124.204	O4	C2	O6	124.204

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

using model chemistry: HF/STO-3G

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	0.285
2	C	0.285
3	O	-0.276
4	O	-0.276
5	O	-0.238
6	O	-0.238
7	H	0.230
8	H	0.230

	x	y	z
x	4.468	-0.743	0.000
y	-0.743	2.533	0.000
z	0.000	0.000	0.676

<r²>	138.862
(<r²>)^1/2	11.784

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

using model chemistry: HF/STO-3G

States and conformations

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