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	hartrees
Energy at 0K	-189.218019
Energy at 298.15K	-189.215787
HF Energy	-189.218019
Nuclear repulsion energy	76.519957

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2383	2284	1559.72
2	Σ	1997	1914	50.85
3	Σ	976	935	1.62
4	Π	620	595	34.52
4	Π	620	595	34.52
5	Π	144	138	3.61
5	Π	144	138	3.61

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.028
C2	0.000	0.000	-0.757
C3	0.000	0.000	0.538
O4	0.000	0.000	1.685

	C1	C2	C3	O4
C1		1.2713	2.5664	3.7128
C2	1.2713		1.2951	2.4415
C3	2.5664	1.2951		1.1464
O4	3.7128	2.4415	1.1464

Number	Element	Mulliken
1	C	-0.075
2	C	-0.088
3	C	0.314
4	O	-0.151

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

using model chemistry: PBE1PBE/6-311G*

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>	67.508
(<r²>)^1/2	8.216

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

using model chemistry: PBE1PBE/6-311G*

States and conformations

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