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	hartrees
Energy at 0K	-264.264667
Energy at 298.15K
HF Energy	-263.386417
Nuclear repulsion energy	122.910460

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2298	2298	0.00
2	Σ_g	788	788	0.00
3	Σ_u	2387	2387	4054.80
4	Σ_u	1672	1672	88.94
5	Π_g	608	608	0.00
5	Π_g	608	608	0.00
6	Π_u	573	573	68.07
6	Π_u	573	573	68.07
7	Π_u	44i	44i	0.96
7	Π_u	44i	44i	0.96

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.275
C3	0.000	0.000	-1.275
O4	0.000	0.000	2.430
O5	0.000	0.000	-2.430

	C1	C2	C3	O4	O5
C1		1.2748	1.2748	2.4302	2.4302
C2	1.2748		2.5495	1.1555	3.7050
C3	1.2748	2.5495		3.7050	1.1555
O4	2.4302	1.1555	3.7050		4.8604
O5	2.4302	3.7050	1.1555	4.8604

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/Def2TZVPP

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/Def2TZVPP

States and conformations

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