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	hartrees
Energy at 0K	-264.276179
Energy at 298.15K	-264.274755
HF Energy	-263.370717
Nuclear repulsion energy	122.034131

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	Σ_g	2235	2122	0.00	109.31	0.34	0.51
2	Σ_g	770	731	0.00	65.55	0.26	0.41
3	Σ_u	2455	2331	2670.61	0.00	0.00	0.00
4	Σ_u	1608	1526	82.80	0.00	0.00	0.00
5	Π_g	579	549	0.00	0.62	0.75	0.86
5	Π_g	579	549	0.00	0.62	0.75	0.86
6	Π_u	542	515	41.71	0.00	0.00	0.00
6	Π_u	542	515	41.71	0.00	0.00	0.00
7	Π_u	63	60	0.24	0.00	0.00	0.00
7	Π_u	63	60	0.24	0.00	0.00	0.00

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.276
C3	0.000	0.000	-1.276
O4	0.000	0.000	2.447
O5	0.000	0.000	-2.447

	C1	C2	C3	O4	O5
C1		1.2763	1.2763	2.4470	2.4470
C2	1.2763		2.5526	1.1707	3.7233
C3	1.2763	2.5526		3.7233	1.1707
O4	2.4470	1.1707	3.7233		4.8940
O5	2.4470	3.7233	1.1707	4.8940

atom1	atom2	atom3	angle		atom1	atom2	atom3	angle
C1	C2	O4	180.000		C1	C3	O5	180.000
C2	C1	C3	180.000

All results from a given calculation for C₃O₂ (Carbon suboxide)

using model chemistry: MP2/cc-pVTZ

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 C3O2 (Carbon suboxide)

using model chemistry: MP2/cc-pVTZ

States and conformations

All results from a given calculation for C₃O₂ (Carbon suboxide)