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	hartrees
Energy at 0K	-264.365321
Energy at 298.15K	-264.363831
HF Energy	-263.390764
Nuclear repulsion energy	122.245023

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	Σ_g	2226	2114	0.00	137.79	0.43	0.60
2	Σ_g	770	731	0.00	77.67	0.19	0.33
3	Σ_u	2437	2314	2893.43	0.00	0.50	0.66
4	Σ_u	1606	1526	100.54	0.00	0.00	0.00
5	Π_g	579	550	0.00	1.05	0.75	0.86
5	Π_g	579	550	0.00	1.05	0.75	0.86
6	Π_u	542	515	32.45	0.00	0.75	0.86
6	Π_u	542	515	32.45	0.00	0.75	0.86
7	Π_u	47	45	0.02	0.00	0.75	0.86
7	Π_u	47	45	0.02	0.00	0.75	0.86

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	2.443
O5	0.000	0.000	-2.443

	C1	C2	C3	O4	O5
C1		1.2746	1.2746	2.4428	2.4428
C2	1.2746		2.5491	1.1682	3.7174
C3	1.2746	2.5491		3.7174	1.1682
O4	2.4428	1.1682	3.7174		4.8856
O5	2.4428	3.7174	1.1682	4.8856

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: MP2/aug-cc-pVQZ

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: MP2/aug-cc-pVQZ

States and conformations

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