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	hartrees
Energy at 0K	-188.944876
Energy at 298.15K
HF Energy	-188.344749
Nuclear repulsion energy	74.968180

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2246	2196
2	Σ	1878	1836
3	Σ	923	902
4	Π	559	546
4	Π	559	546
5	Π	86i	84i
5	Π	86i	84i

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.072
C2	0.000	0.000	-0.770
C3	0.000	0.000	0.551
O4	0.000	0.000	1.719

	C1	C2	C3	O4
C1		1.3020	2.6234	3.7908
C2	1.3020		1.3215	2.4889
C3	2.6234	1.3215		1.1674
O4	3.7908	2.4889	1.1674

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

using model chemistry: QCISD(T)/aug-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 C3O (Tricarbon monoxide)

using model chemistry: QCISD(T)/aug-cc-pVDZ

States and conformations

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