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	hartrees
Energy at 0K	-189.398450
Energy at 298.15K	-189.396138
HF Energy	-189.398450
Nuclear repulsion energy

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2366	2366	1800.55
2	Σ	2012	2012	77.41
3	Σ	976	976	0.20
4	Π	613	613	27.57
4	Π	613	613	27.57
5	Π	121	121	5.05
5	Π	121	121	5.05

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.019
C2	0.000	0.000	-0.757
C3	0.000	0.000	0.538
O4	0.000	0.000	1.678

	C1	C2	C3	O4
C1		1.2615	2.5564	3.6970
C2	1.2615		1.2949	2.4355
C3	2.5564	1.2949		1.1406
O4	3.6970	2.4355	1.1406

Number	Element	Mulliken
1	C	0.232
2	C	-0.470
3	C	0.374
4	O	-0.135

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

using model chemistry: wB97X-D/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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<r²>	67.223
(<r²>)^1/2	8.199

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

using model chemistry: wB97X-D/cc-pVQZ

States and conformations

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