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	hartrees
Energy at 0K	-264.121393
Energy at 298.15K
HF Energy	-263.306930
Nuclear repulsion energy	120.875632

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ_g	2201	2138
2	Σ_g	761	739
3	Σ_u	2356	2288
4	Σ_u	1592	1546
5	Π_g	580	563
5	Π_g	580	563
6	Π_u	510	495
6	Π_u	510	495
7	Π_u	120i	117i
7	Π_u	120i	117i

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	2.471
O5	0.000	0.000	-2.471

	C1	C2	C3	O4	O5
C1		1.2943	1.2943	2.4707	2.4707
C2	1.2943		2.5885	1.1765	3.7650
C3	1.2943	2.5885		3.7650	1.1765
O4	2.4707	1.1765	3.7650		4.9415
O5	2.4707	3.7650	1.1765	4.9415

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/aug-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/aug-cc-pVDZ

States and conformations

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