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	hartrees
Energy at 0K	-189.204795
Energy at 298.15K	-189.202541
HF Energy	-188.406274
Nuclear repulsion energy	76.888910

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2371	2371	1978.72
2	Σ	2022	2022	72.17
3	Σ	981	981	0.23
4	Π	624	624	30.23
4	Π	624	624	30.23
5	Π	134	134	4.75
5	Π	134	134	4.75

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.018
C2	0.000	0.000	-0.757
C3	0.000	0.000	0.539
O4	0.000	0.000	1.677

	C1	C2	C3	O4
C1		1.2616	2.5572	3.6951
C2	1.2616		1.2956	2.4335
C3	2.5572	1.2956		1.1379
O4	3.6951	2.4335	1.1379

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

using model chemistry: CCSD=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: CCSD=FULL/cc-pVQZ

States and conformations

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