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	hartrees
Energy at 0K	-263.681198
Energy at 298.15K
HF Energy	-263.129948
Nuclear repulsion energy	119.541715

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	2133	2027	0.00	90.60	0.29	0.46
2	Σ_g	744	707	0.00	83.87	0.29	0.45
3	Σ_u	2421	2300	2269.73	0.00	0.00	0.00
4	Σ_u	1516	1441	119.91	0.00	0.00	0.00
5	Π_g	482	458	0.00	0.02	0.75	0.86
5	Π_g	482	458	0.00	0.02	0.75	0.86
6	Π_u	337	320	39.00	0.00	0.00	0.00
6	Π_u	337	320	39.00	0.00	0.00	0.00
7	Π_u	209i	199i	8.39	0.00	0.00	0.00
7	Π_u	209i	199i	8.39	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	1.287
C3	0.000	0.000	-1.287
O4	0.000	0.000	2.497
O5	0.000	0.000	-2.497

	C1	C2	C3	O4	O5
C1		1.2874	1.2874	2.4970	2.4970
C2	1.2874		2.5747	1.2097	3.7844
C3	1.2874	2.5747		3.7844	1.2097
O4	2.4970	1.2097	3.7844		4.9940
O5	2.4970	3.7844	1.2097	4.9940

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)