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	hartrees
Energy at 0K	-339.289694
Energy at 298.15K
HF Energy	-339.289694
Nuclear repulsion energy	223.610808

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3361	3257	0.45
2	A₁	1891	1832	430.39
3	A₁	1633	1582	0.49
4	A₁	1172	1135	47.78
5	A₁	1051	1018	69.15
6	A₁	817	791	27.65
7	A₁	708	685	3.33
8	A₂	871	844	0.00
9	A₂	558	541	0.00
10	B₁	773	749	44.90
11	B₁	702	680	64.69
12	B₁	237	229	2.93
13	B₂	3331	3227	5.41
14	B₂	1337	1295	2.11
15	B₂	1019	988	68.68
16	B₂	919	890	44.20
17	B₂	834	808	9.69
18	B₂	493	477	0.06

Atom	y (Å)	z (Å)
C1	0.000	0.820
O2	0.000	2.026
O3	1.143	-0.026
O4	-1.143	-0.026
C5	0.668	-1.369
C6	-0.668	-1.369
H7	1.406	-2.146
H8	-1.406	-2.146

	C1	O2	O3	O4	C5	C6	H7	H8
C1		1.2067	1.4212	1.4212	2.2878	2.2878	3.2826	3.2826
O2	1.2067		2.3485	2.3485	3.4599	3.4599	4.4034	4.4034
O3	1.4212	2.3485		2.2850	1.4245	2.2539	2.1372	3.3159
O4	1.4212	2.3485	2.2850		2.2539	1.4245	3.3159	2.1372
C5	2.2878	3.4599	1.4245	2.2539		1.3352	1.0728	2.2151
C6	2.2878	3.4599	2.2539	1.4245	1.3352		2.2151	1.0728
H7	3.2826	4.4034	2.1372	3.3159	1.0728	2.2151		2.8129
H8	3.2826	4.4034	3.3159	2.1372	2.2151	1.0728	2.8129

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	C5	107.020	C1	O4	C6	107.020
O2	C1	O3	126.494	O2	C1	O4	126.494
O3	C1	O4	107.011	O3	C5	C6	109.475
O3	C5	H7	116.994	O4	C6	C5	109.475
O4	C6	H8	116.994	C5	C6	H8	133.531
C6	C5	H7	133.531

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

using model chemistry: TPSSh/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	0.868
2	O	-0.464
3	O	-0.483
4	O	-0.483
5	C	0.008
6	C	0.008
7	H	0.272
8	H	0.272

	x	y	z	Total
	0.000	0.000	-4.510	4.510
CHELPG
AIM
ESP

<r²>	119.277
(<r²>)^1/2	10.921

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

using model chemistry: TPSSh/3-21G

States and conformations

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