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	hartrees
Energy at 0K	-260.128463
Energy at 298.15K	-260.126796
HF Energy	-259.756949
Nuclear repulsion energy	118.400742

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	2307	2050	0.00	41.16	0.33	0.49
2	Σ_g	770	685	0.00	51.72	0.31	0.47
3	Σ_u	2628	2336	913.03	0.00	0.00	0.00
4	Σ_u	1596	1418	27.05	0.00	0.00	0.00
5	Π_g	505	449	0.00	0.01	0.75	0.86
5	Π_g	505	449	0.00	0.01	0.75	0.86
6	Π_u	460	409	21.03	0.00	0.00	0.00
6	Π_u	460	409	21.03	0.00	0.00	0.00
7	Π_u	129	115	0.20	0.00	0.00	0.00
7	Π_u	129	115	0.20	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	1.291
C3	0.000	0.000	-1.291
O4	0.000	0.000	2.521
O5	0.000	0.000	-2.521

	C1	C2	C3	O4	O5
C1		1.2912	1.2912	2.5207	2.5207
C2	1.2912		2.5824	1.2295	3.8119
C3	1.2912	2.5824		3.8119	1.2295
O4	2.5207	1.2295	3.8119		5.0414
O5	2.5207	3.8119	1.2295	5.0414

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

using model chemistry: MP2=FULL/STO-3G

States and conformations

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