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	hartrees
Energy at 0K	-189.219550
Energy at 298.15K	-189.217421
HF Energy	-189.032569
Nuclear repulsion energy	75.732258

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2335	2335	1200.71
2	Σ	1940	1940	14.35
3	Σ	960	960	1.61
4	Π	597	597	26.77
4	Π	597	597	26.77
5	Π	188	188	6.63
5	Π	188	188	6.63

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.046
C2	0.000	0.000	-0.763
C3	0.000	0.000	0.537
O4	0.000	0.000	1.704

	C1	C2	C3	O4
C1		1.2823	2.5829	3.7491
C2	1.2823		1.3006	2.4668
C3	2.5829	1.3006		1.1662
O4	3.7491	2.4668	1.1662

Number	Element	Mulliken
1	C	-0.105
2	C	0.098
3	C	0.296
4	O	-0.289

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

using model chemistry: B2PLYP/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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<r²>	68.335
(<r²>)^1/2	8.267

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

using model chemistry: B2PLYP/6-31G**

States and conformations

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