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	hartrees
Energy at 0K	-187.662763
Energy at 298.15K	-187.660450
HF Energy	-187.268617
Nuclear repulsion energy	75.058951

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2313	2193	878.76
2	Σ	1867	1770	5.24
3	Σ	925	877	0.31
4	Π	673	638	27.70
4	Π	673	638	27.70
5	Π	108	103	2.74
5	Π	108	103	2.74

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.059
C2	0.000	0.000	-0.769
C3	0.000	0.000	0.533
O4	0.000	0.000	1.721

	C1	C2	C3	O4
C1		1.2898	2.5913	3.7795
C2	1.2898		1.3015	2.4897
C3	2.5913	1.3015		1.1882
O4	3.7795	2.4897	1.1882

All results from a given calculation for C₃O (Tricarbon monoxide)

using model chemistry: MP2=FULL/3-21G*

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 C3O (Tricarbon monoxide)

using model chemistry: MP2=FULL/3-21G*

States and conformations

All results from a given calculation for C₃O (Tricarbon monoxide)