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	hartrees
Energy at 0K	-264.016726
Energy at 298.15K	-264.015336
HF Energy	-263.300072
Nuclear repulsion energy	121.823373

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	2320	2219	0.00
2	Σ_g	794	760	0.00
3	Σ_u	2421	2316	3918.16
4	Σ_u	1685	1612	95.61
5	Π_g	614	587	0.00
5	Π_g	614	587	0.00
6	Π_u	591	565	83.45
6	Π_u	591	565	83.45
7	Π_u	43	42	1.66
7	Π_u	43	42	1.66

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.289
C3	0.000	0.000	-1.289
O4	0.000	0.000	2.452
O5	0.000	0.000	-2.452

	C1	C2	C3	O4	O5
C1		1.2889	1.2889	2.4522	2.4522
C2	1.2889		2.5779	1.1632	3.7411
C3	1.2889	2.5779		3.7411	1.1632
O4	2.4522	1.1632	3.7411		4.9043
O5	2.4522	3.7411	1.1632	4.9043

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-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: CCD/cc-pVDZ

States and conformations

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