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	hartrees
Energy at 0K	-189.326700
Energy at 298.15K	-189.324536
HF Energy	-189.326700
Nuclear repulsion energy	75.934204

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2362	2280	1443.29
2	Σ	1980	1911	29.52
3	Σ	971	937	2.90
4	Π	610	588	27.52
4	Π	610	588	27.52
5	Π	168	162	5.22
5	Π	168	162	5.22

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.044
C2	0.000	0.000	-0.762
C3	0.000	0.000	0.542
O4	0.000	0.000	1.698

	C1	C2	C3	O4
C1		1.2819	2.5860	3.7415
C2	1.2819		1.3041	2.4596
C3	2.5860	1.3041		1.1555
O4	3.7415	2.4596	1.1555

Number	Element	Mulliken
1	C	-0.173
2	C	0.097
3	C	0.102
4	O	-0.026

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

using model chemistry: B3PW91/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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<r²>	68.189
(<r²>)^1/2	8.258

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

using model chemistry: B3PW91/cc-pVDZ

States and conformations

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