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	hartrees
Energy at 0K	-264.263757
Energy at 298.15K
HF Energy	-263.378804
Nuclear repulsion energy	123.060502

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2316	2316	0.00
2	Σ_g	792	792	0.00
3	Σ_u	2397	2397	4518.62
4	Σ_u	1684	1684	90.11
5	Π_g	612	612	0.00
5	Π_g	612	612	0.00
6	Π_u	545	545	53.42
6	Π_u	545	545	53.42
7	Π_u	107i	107i	0.99
7	Π_u	107i	107i	0.99

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.274
C3	0.000	0.000	-1.274
O4	0.000	0.000	2.427
O5	0.000	0.000	-2.427

	C1	C2	C3	O4	O5
C1		1.2737	1.2737	2.4273	2.4273
C2	1.2737		2.5474	1.1536	3.7010
C3	1.2737	2.5474		3.7010	1.1536
O4	2.4273	1.1536	3.7010		4.8546
O5	2.4273	3.7010	1.1536	4.8546

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: CCD/daug-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: CCD/daug-cc-pVTZ

States and conformations

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