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	hartrees
Energy at 0K	-263.700524
Energy at 298.15K	-263.699181
HF Energy	-263.166818
Nuclear repulsion energy	118.684738

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	2109	2031	0.00	129.10	0.29	0.45
2	Σ_g	726	699	0.00	97.98	0.28	0.44
3	Σ_u	2403	2315	2629.08	0.00	0.00	0.00
4	Σ_u	1489	1434	147.23	0.00	0.00	0.00
5	Π_g	535	516	0.00	0.02	0.75	0.86
5	Π_g	535	516	0.00	0.02	0.75	0.86
6	Π_u	540	520	55.63	0.00	0.00	0.00
6	Π_u	540	520	55.63	0.00	0.00	0.00
7	Π_u	115	111	0.17	0.00	0.00	0.00
7	Π_u	115	111	0.17	0.00	0.00	0.00

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.297
C3	0.000	0.000	-1.297
O4	0.000	0.000	2.515
O5	0.000	0.000	-2.515

	C1	C2	C3	O4	O5
C1		1.2972	1.2972	2.5151	2.5151
C2	1.2972		2.5945	1.2178	3.8123
C3	1.2972	2.5945		3.8123	1.2178
O4	2.5151	1.2178	3.8123		5.0301
O5	2.5151	3.8123	1.2178	5.0301

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/LANL2DZ

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/LANL2DZ

States and conformations

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