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	hartrees
Energy at 0K	-264.127407
Energy at 298.15K
HF Energy	-263.308880
Nuclear repulsion energy	120.909875

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ_g	2202	2202
2	Σ_g	761	761
3	Σ_u	2358	2358
4	Σ_u	1595	1595
5	Π_g	588	588
5	Π_g	588	588
6	Π_u	526	526
6	Π_u	526	526
7	Π_u	99i	99i
7	Π_u	99i	99i

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.294
C3	0.000	0.000	-1.294
O4	0.000	0.000	2.470
O5	0.000	0.000	-2.470

	C1	C2	C3	O4	O5
C1		1.2936	1.2936	2.4700	2.4700
C2	1.2936		2.5872	1.1764	3.7636
C3	1.2936	2.5872		3.7636	1.1764
O4	2.4700	1.1764	3.7636		4.9400
O5	2.4700	3.7636	1.1764	4.9400

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(T)=FULL/daug-cc-pVDZ

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(T)=FULL/daug-cc-pVDZ

States and conformations

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