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	hartrees
Energy at 0K	-189.138481
Energy at 298.15K	-189.136104
HF Energy	-188.403915
Nuclear repulsion energy	76.180070

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2297	2208
2	Σ	1932	1858
3	Σ	945	909
4	Π	587	564
4	Π	587	564
5	Π	113	109
5	Π	113	109

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.037
C2	0.000	0.000	-0.760
C3	0.000	0.000	0.541
O4	0.000	0.000	1.692

	C1	C2	C3	O4
C1		1.2764	2.5779	3.7290
C2	1.2764		1.3015	2.4526
C3	2.5779	1.3015		1.1511
O4	3.7290	2.4526	1.1511

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

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

States and conformations

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