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	hartrees
Energy at 0K	-264.246041
Energy at 298.15K
HF Energy	-263.375605
Nuclear repulsion energy	123.107410

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2330	2175	0.00
2	Σ_g	795	743	0.00
3	Σ_u	2418	2258	4275.86
4	Σ_u	1693	1580	82.45
5	Π_g	616	575	0.00
5	Π_g	616	575	0.00
6	Π_u	578	540	69.29
6	Π_u	578	540	69.29
7	Π_u	52i	49i	1.08
7	Π_u	52i	49i	1.08

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.273
C3	0.000	0.000	-1.273
O4	0.000	0.000	2.426
O5	0.000	0.000	-2.426

	C1	C2	C3	O4	O5
C1		1.2731	1.2731	2.4264	2.4264
C2	1.2731		2.5461	1.1533	3.6994
C3	1.2731	2.5461		3.6994	1.1533
O4	2.4264	1.1533	3.6994		4.8527
O5	2.4264	3.6994	1.1533	4.8527

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/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/cc-pVTZ

States and conformations

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