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	hartrees
Energy at 0K	-188.943010
Energy at 298.15K
HF Energy	-188.345169
Nuclear repulsion energy	75.024948

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2261	2177
2	Σ	1892	1821
3	Σ	926	891
4	Π	562	541
4	Π	562	541
5	Π	81i	78i
5	Π	81i	78i

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.071
C2	0.000	0.000	-0.770
C3	0.000	0.000	0.551
O4	0.000	0.000	1.717

	C1	C2	C3	O4
C1		1.3005	2.6221	3.7880
C2	1.3005		1.3217	2.4876
C3	2.6221	1.3217		1.1659
O4	3.7880	2.4876	1.1659

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

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

States and conformations

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