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	hartrees
Energy at 0K	-188.939720
Energy at 298.15K
HF Energy	-188.346326
Nuclear repulsion energy	75.190709

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2305	2305
2	Σ	1934	1934
3	Σ	936	936
4	Π	567	567
4	Π	567	567
5	Π	90i	90i
5	Π	90i	90i

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.066
C2	0.000	0.000	-0.770
C3	0.000	0.000	0.552
O4	0.000	0.000	1.714

	C1	C2	C3	O4
C1		1.2960	2.6183	3.7798
C2	1.2960		1.3223	2.4838
C3	2.6183	1.3223		1.1615
O4	3.7798	2.4838	1.1615

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

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

States and conformations

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