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	hartrees
Energy at 0K	-189.252734
Energy at 298.15K	-189.250463
HF Energy	-188.404106
Nuclear repulsion energy	76.342957

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2302	2302
2	Σ	1935	1935
3	Σ	952	952
4	Π	597	597
4	Π	597	597
5	Π	140	140
5	Π	140	140

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.033
C2	0.000	0.000	-0.759
C3	0.000	0.000	0.539
O4	0.000	0.000	1.689

	C1	C2	C3	O4
C1		1.2740	2.5718	3.7215
C2	1.2740		1.2978	2.4474
C3	2.5718	1.2978		1.1497
O4	3.7215	2.4474	1.1497

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

using model chemistry: QCISD(T)=FULL/cc-pVQZ

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)=FULL/cc-pVQZ

States and conformations

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