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	hartrees
Energy at 0K	-188.914534
Energy at 298.15K	-188.912250
HF Energy	-188.338448
Nuclear repulsion energy	75.116923

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2290	2241
2	Σ	1912	1872
3	Σ	937	917
4	Π	584	572
4	Π	584	572
5	Π	143	140
5	Π	143	140

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.068
C2	0.000	0.000	-0.769
C3	0.000	0.000	0.551
O4	0.000	0.000	1.715

	C1	C2	C3	O4
C1		1.2993	2.6193	3.7835
C2	1.2993		1.3200	2.4843
C3	2.6193	1.3200		1.1643
O4	3.7835	2.4843	1.1643

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

using model chemistry: CCSD(T)/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: CCSD(T)/cc-pVDZ

States and conformations

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