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	hartrees
Energy at 0K	-188.626645
Energy at 298.15K
HF Energy	-188.229276
Nuclear repulsion energy	74.484944

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2291	2176	1045.73
2	Σ	1840	1749	0.30
3	Σ	909	864	0.23
4	Π	461	438	25.91
4	Π	461	438	25.91
5	Π	91i	86i	2.48
5	Π	91i	86i	2.48

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.076
C2	0.000	0.000	-0.775
C3	0.000	0.000	0.539
O4	0.000	0.000	1.734

	C1	C2	C3	O4
C1		1.3010	2.6142	3.8093
C2	1.3010		1.3131	2.5083
C3	2.6142	1.3131		1.1951
O4	3.8093	2.5083	1.1951

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

using model chemistry: MP2=FULL/6-31G

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: MP2=FULL/6-31G

States and conformations

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