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	hartrees
Energy at 0K	-264.020573
Energy at 298.15K	-264.019429
HF Energy	-263.276832
Nuclear repulsion energy	121.123779

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	2224	2092	0.00	139.50	0.40	0.57
2	Σ_g	773	727	0.00	83.62	0.24	0.39
3	Σ_u	2457	2311	2866.45	0.00	0.00	0.00
4	Σ_u	1599	1504	116.91	0.00	0.00	0.00
5	Π_g	567	534	0.00	0.29	0.75	0.86
5	Π_g	567	534	0.00	0.29	0.75	0.86
6	Π_u	583	548	48.17	0.00	0.00	0.00
6	Π_u	583	548	48.17	0.00	0.00	0.00
7	Π_u	135	127	0.01	0.00	0.00	0.00
7	Π_u	135	127	0.01	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	1.281
C3	0.000	0.000	-1.281
O4	0.000	0.000	2.465
O5	0.000	0.000	-2.465

	C1	C2	C3	O4	O5
C1		1.2808	1.2808	2.4650	2.4650
C2	1.2808		2.5615	1.1843	3.7458
C3	1.2808	2.5615		3.7458	1.1843
O4	2.4650	1.1843	3.7458		4.9300
O5	2.4650	3.7458	1.1843	4.9300

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: MP2/6-31+G**

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: MP2/6-31+G**

States and conformations

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