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	hartrees
Energy at 0K	-187.274372
Energy at 298.15K	-187.272584
HF Energy	-187.274372
Nuclear repulsion energy	77.057877

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2470	2237	2333.68
2	Σ	2120	1920	11.90
3	Σ	1042	943	0.41
4	Π	807	731	93.81
4	Π	807	731	93.81
5	Π	233	211	0.81
5	Π	233	211	0.81

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.009
C2	0.000	0.000	-0.752
C3	0.000	0.000	0.527
O4	0.000	0.000	1.675

	C1	C2	C3	O4
C1		1.2571	2.5362	3.6837
C2	1.2571		1.2790	2.4266
C3	2.5362	1.2790		1.1475
O4	3.6837	2.4266	1.1475

Number	Element	Mulliken
1	C	0.277
2	C	-0.348
3	C	0.565
4	O	-0.495

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

using model chemistry: HF/3-21G

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>	66.938
(<r²>)^1/2	8.182

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

using model chemistry: HF/3-21G

States and conformations

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