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	hartrees
Energy at 0K	-336.727680
Energy at 298.15K
HF Energy	-336.727680
Nuclear repulsion energy	219.673790

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3523	3523	18.98
2	A₁	1935	1935	169.30
3	A₁	1734	1734	0.36
4	A₁	1202	1202	45.33
5	A₁	1153	1153	7.55
6	A₁	841	841	20.24
7	A₁	686	686	0.77
8	A₂	847	847	0.00
9	A₂	535	535	0.00
10	B₁	740	740	25.26
11	B₁	606	606	13.57
12	B₁	233	233	0.17
13	B₂	3487	3487	40.43
14	B₂	1432	1432	2.63
15	B₂	1103	1103	10.57
16	B₂	1015	1015	42.56
17	B₂	888	888	0.01
18	B₂	459	459	0.86

Atom	y (Å)	z (Å)
C1	0.000	0.813
O2	0.000	2.056
O3	1.192	-0.035
O4	-1.192	-0.035
C5	0.676	-1.366
C6	-0.676	-1.366
H7	1.407	-2.183
H8	-1.407	-2.183

	C1	O2	O3	O4	C5	C6	H7	H8
C1		1.2430	1.4631	1.4631	2.2810	2.2810	3.3100	3.3100
O2	1.2430		2.4070	2.4070	3.4877	3.4877	4.4665	4.4665
O3	1.4631	2.4070		2.3845	1.4273	2.2934	2.1588	3.3719
O4	1.4631	2.4070	2.3845		2.2934	1.4273	3.3719	2.1588
C5	2.2810	3.4877	1.4273	2.2934		1.3513	1.0968	2.2372
C6	2.2810	3.4877	2.2934	1.4273	1.3513		2.2372	1.0968
H7	3.3100	4.4665	2.1588	3.3719	1.0968	2.2372		2.8136
H8	3.3100	4.4665	3.3719	2.1588	2.2372	1.0968	2.8136

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	C5	104.206	C1	O4	C6	104.206
O2	C1	O3	125.424	O2	C1	O4	125.424
O3	C1	O4	109.151	O3	C5	C6	111.219
O3	C5	H7	116.975	O4	C6	C5	111.219
O4	C6	H8	116.975	C5	C6	H8	131.806
C6	C5	H7	131.806

All results from a given calculation for C₃H₂O₃ (vinylene carbonate)

using model chemistry: TPSSh/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	0.263
2	O	-0.183
3	O	-0.127
4	O	-0.127
5	C	-0.020
6	C	-0.020
7	H	0.107
8	H	0.107

<r²>	120.689
(<r²>)^1/2	10.986

All results from a given calculation for C3H2O3 (vinylene carbonate)

using model chemistry: TPSSh/STO-3G

States and conformations

All results from a given calculation for C₃H₂O₃ (vinylene carbonate)