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	hartrees
Energy at 0K	-264.083699
Energy at 298.15K
HF Energy	-263.307367
Nuclear repulsion energy	120.736648

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	2199	2199	0.00	142.48	0.44	0.61
2	Σ_g	760	760	0.00	83.79	0.20	0.33
3	Σ_u	2433	2433	2838.49	0.00	0.00	0.00
4	Σ_u	1582	1582	114.06	0.00	0.00	0.00
5	Π_g	578	578	0.00	1.12	0.75	0.86
5	Π_g	578	578	0.00	1.12	0.75	0.86
6	Π_u	516	516	31.22	0.00	0.00	0.00
6	Π_u	516	516	31.22	0.00	0.00	0.00
7	Π_u	77i	77i	0.28	0.00	0.00	0.00
7	Π_u	77i	77i	0.28	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	1.292
C3	0.000	0.000	-1.292
O4	0.000	0.000	2.473
O5	0.000	0.000	-2.473

	C1	C2	C3	O4	O5
C1		1.2917	1.2917	2.4734	2.4734
C2	1.2917		2.5834	1.1818	3.7651
C3	1.2917	2.5834		3.7651	1.1818
O4	2.4734	1.1818	3.7651		4.9469
O5	2.4734	3.7651	1.1818	4.9469

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/daug-cc-pVDZ

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/daug-cc-pVDZ

States and conformations

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