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	hartrees
Energy at 0K	-340.268236
Energy at 298.15K
HF Energy	-339.337554
Nuclear repulsion energy	228.741082

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3401	3172	0.01
2	A₁	1975	1842	609.29
3	A₁	1730	1613	1.96
4	A₁	1224	1142	139.01
5	A₁	1151	1073	35.65
6	A₁	921	859	30.08
7	A₁	749	699	3.11
8	A₂	796	742	0.00
9	A₂	554	516	0.00
10	B₁	786	733	3.83
11	B₁	723	675	82.64
12	B₁	236	220	1.50
13	B₂	3375	3148	6.77
14	B₂	1412	1317	36.19
15	B₂	1133	1056	137.23
16	B₂	1106	1031	0.03
17	B₂	913	851	2.02
18	B₂	531	495	0.10

Atom	y (Å)	z (Å)
C1	0.000	0.784
O2	0.000	1.979
O3	1.111	-0.019
O4	-1.111	-0.019
C5	0.666	-1.334
C6	-0.666	-1.334
H7	1.409	-2.109
H8	-1.409	-2.109

	C1	O2	O3	O4	C5	C6	H7	H8
C1		1.1943	1.3711	1.3711	2.2210	2.2210	3.2177	3.2177
O2	1.1943		2.2859	2.2859	3.3794	3.3794	4.3232	4.3232
O3	1.3711	2.2859		2.2222	1.3886	2.2111	2.1106	3.2736
O4	1.3711	2.2859	2.2222		2.2111	1.3886	3.2736	2.1106
C5	2.2210	3.3794	1.3886	2.2111		1.3322	1.0729	2.2148
C6	2.2210	3.3794	2.2111	1.3886	1.3322		2.2148	1.0729
H7	3.2177	4.3232	2.1106	3.2736	1.0729	2.2148		2.8179
H8	3.2177	4.3232	3.2736	2.1106	2.2148	1.0729	2.8179

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	O3	C5	107.178	C1	O4	C6	107.178
O2	C1	O3	125.868	O2	C1	O4	125.868
O3	C1	O4	108.264	O3	C5	C6	108.690
O3	C5	H7	117.491	O4	C6	C5	108.690
O4	C6	H8	117.491	C5	C6	H8	133.819
C6	C5	H7	133.819

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

using model chemistry: CCSD/6-31G**

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 C3H2O3 (vinylene carbonate)

using model chemistry: CCSD/6-31G**

States and conformations

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