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	hartrees
Energy at 0K	-264.109367
Energy at 298.15K
HF Energy	-263.344674
Nuclear repulsion energy	122.611128

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2306	2306	0.00
2	Σ_g	786	786	0.00
3	Σ_u	2406	2406	3812.69
4	Σ_u	1672	1672	83.38
5	Π_g	617	617	0.00
5	Π_g	617	617	0.00
6	Π_u	588	588	88.08
6	Π_u	588	588	88.08
7	Π_u	60i	60i	2.29
7	Π_u	60i	60i	2.29

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.278
C3	0.000	0.000	-1.278
O4	0.000	0.000	2.436
O5	0.000	0.000	-2.436

	C1	C2	C3	O4	O5
C1		1.2777	1.2777	2.4361	2.4361
C2	1.2777		2.5555	1.1584	3.7139
C3	1.2777	2.5555		3.7139	1.1584
O4	2.4361	1.1584	3.7139		4.8723
O5	2.4361	3.7139	1.1584	4.8723

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: CCSD/6-311G**

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: CCSD/6-311G**

States and conformations

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