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	hartrees
Energy at 0K	-264.027932
Energy at 298.15K	-264.026736
HF Energy	-263.270660
Nuclear repulsion energy	121.341115

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	2255	2125	0.00	88.70	0.29	0.45
2	Σ_g	780	735	0.00	66.76	0.28	0.44
3	Σ_u	2491	2347	2416.47	0.00	0.00	0.00
4	Σ_u	1619	1525	81.26	0.00	0.00	0.00
5	Π_g	579	545	0.00	0.10	0.75	0.86
5	Π_g	579	545	0.00	0.10	0.75	0.86
6	Π_u	581	547	56.11	0.00	0.00	0.00
6	Π_u	581	547	56.11	0.00	0.00	0.00
7	Π_u	119	112	0.00	0.00	0.00	0.00
7	Π_u	119	112	0.00	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	1.278
C3	0.000	0.000	-1.278
O4	0.000	0.000	2.461
O5	0.000	0.000	-2.461

	C1	C2	C3	O4	O5
C1		1.2782	1.2782	2.4606	2.4606
C2	1.2782		2.5564	1.1824	3.7388
C3	1.2782	2.5564		3.7388	1.1824
O4	2.4606	1.1824	3.7388		4.9211
O5	2.4606	3.7388	1.1824	4.9211

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=FULL/6-31G*

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=FULL/6-31G*

States and conformations

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