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	hartrees
Energy at 0K	-264.293361
Energy at 298.15K
HF Energy	-263.373242
Nuclear repulsion energy	121.978536

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	2219	2114	0.00	141.05	0.43	0.60
2	Σ_g	766	730	0.00	78.54	0.20	0.33
3	Σ_u	2435	2320	2879.81	0.00	0.00	0.00
4	Σ_u	1600	1525	100.75	0.00	0.00	0.00
5	Π_g	570	543	0.00	1.00	0.75	0.86
5	Π_g	570	543	0.00	1.00	0.75	0.86
6	Π_u	519	495	31.92	0.00	0.75	0.86
6	Π_u	519	495	31.92	0.00	0.00	0.00
7	Π_u	39i	38i	0.10	0.00	0.00	0.00
7	Π_u	39i	38i	0.10	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	1.277
C3	0.000	0.000	-1.277
O4	0.000	0.000	2.448
O5	0.000	0.000	-2.448

	C1	C2	C3	O4	O5
C1		1.2769	1.2769	2.4481	2.4481
C2	1.2769		2.5537	1.1713	3.7250
C3	1.2769	2.5537		3.7250	1.1713
O4	2.4481	1.1713	3.7250		4.8962
O5	2.4481	3.7250	1.1713	4.8962

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/aug-cc-pVTZ

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/aug-cc-pVTZ

States and conformations

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