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	hartrees
Energy at 0K	-48.179903
Energy at 298.15K	-48.178414
HF Energy	-47.643835
Nuclear repulsion energy	57.520736

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	2066	2017	0.00	136.07	0.32	0.48
2	Σ_g	712	695	0.00	101.83	0.27	0.42
3	Σ_u	2341	2285	2701.84	0.00	0.00	0.00
4	Σ_u	1462	1427	139.76	0.00	0.35	0.00
5	Π_g	509	497	0.00	0.05	0.75	0.86
5	Π_g	509	497	0.00	0.05	0.75	0.86
6	Π_u	491	479	49.58	0.00	0.00	0.00
6	Π_u	491	479	49.58	0.00	0.00	0.00
7	Π_u	98	96	0.18	0.00	0.00	0.00
7	Π_u	98	96	0.18	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	1.300
C3	0.000	0.000	-1.300
O4	0.000	0.000	2.524
O5	0.000	0.000	-2.524

	C1	C2	C3	O4	O5
C1		1.3003	1.3003	2.5238	2.5238
C2	1.3003		2.6006	1.2235	3.8241
C3	1.3003	2.6006		3.8241	1.2235
O4	2.5238	1.2235	3.8241		5.0475
O5	2.5238	3.8241	1.2235	5.0475

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/CEP-121G

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/CEP-121G

States and conformations

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