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	hartrees
Energy at 0K	-188.896261
Energy at 298.15K	-188.893942
HF Energy	-188.320401
Nuclear repulsion energy	75.384294

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2298	2205
2	Σ	1916	1838
3	Σ	948	909
4	Π	574	550
4	Π	574	550
5	Π	140	134
5	Π	140	134

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.056
C2	0.000	0.000	-0.766
C3	0.000	0.000	0.541
O4	0.000	0.000	1.711

	C1	C2	C3	O4
C1		1.2903	2.5969	3.7669
C2	1.2903		1.3067	2.4766
C3	2.5969	1.3067		1.1699
O4	3.7669	2.4766	1.1699

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

using model chemistry: QCISD(T)/6-31G*

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)/6-31G*

States and conformations

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