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	hartrees
Energy at 0K	-188.917939
Energy at 298.15K
HF Energy	-188.348392
Nuclear repulsion energy	75.593822

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2321	2321	1983.46
2	Σ	1972	1972	49.31
3	Σ	956	956	0.05
4	Π	592	592	29.80
4	Π	592	592	29.80
5	Π	81i	81i	2.80
5	Π	81i	81i	2.80

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.055
C2	0.000	0.000	-0.768
C3	0.000	0.000	0.550
O4	0.000	0.000	1.705

	C1	C2	C3	O4
C1		1.2877	2.6054	3.7599
C2	1.2877		1.3177	2.4723
C3	2.6054	1.3177		1.1545
O4	3.7599	2.4723	1.1545

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

using model chemistry: CCSD=FULL/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: CCSD=FULL/aug-cc-pVDZ

States and conformations

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