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	hartrees
Energy at 0K	-188.949316
Energy at 298.15K
HF Energy	-188.346638
Nuclear repulsion energy	75.251051

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2310	2310
2	Σ	1938	1938
3	Σ	939	939
4	Π	573	573
4	Π	573	573
5	Π	84i	84i
5	Π	84i	84i

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.065
C2	0.000	0.000	-0.770
C3	0.000	0.000	0.551
O4	0.000	0.000	1.712

	C1	C2	C3	O4
C1		1.2949	2.6161	3.7768
C2	1.2949		1.3212	2.4819
C3	2.6161	1.3212		1.1607
O4	3.7768	2.4819	1.1607

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

using model chemistry: QCISD(TQ)=FULL/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(TQ)=FULL/aug-cc-pVDZ

States and conformations

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