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	hartrees
Energy at 0K	-188.926830
Energy at 298.15K	-188.924615
HF Energy	-188.328421
Nuclear repulsion energy	75.465619

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2286	2286
2	Σ	1917	1917
3	Σ	945	945
4	Π	614	614
4	Π	614	614
5	Π	154	154
5	Π	154	154

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.053
C2	0.000	0.000	-0.766
C3	0.000	0.000	0.541
O4	0.000	0.000	1.709

	C1	C2	C3	O4
C1		1.2872	2.5944	3.7626
C2	1.2872		1.3072	2.4754
C3	2.5944	1.3072		1.1682
O4	3.7626	2.4754	1.1682

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

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

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/6-31+G**

States and conformations

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