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	hartrees
Energy at 0K	-189.358808
Energy at 298.15K	-189.356585
HF Energy	-189.358808
Nuclear repulsion energy	76.441687

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2365	2277	1499.65
2	Σ	1980	1907	42.88
3	Σ	969	933	2.00
4	Π	615	593	33.10
4	Π	615	593	33.10
5	Π	148	142	3.90
5	Π	148	142	3.90

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.030
C2	0.000	0.000	-0.757
C3	0.000	0.000	0.538
O4	0.000	0.000	1.687

	C1	C2	C3	O4
C1		1.2724	2.5675	3.7162
C2	1.2724		1.2951	2.4439
C3	2.5675	1.2951		1.1488
O4	3.7162	2.4439	1.1488

Number	Element	Mulliken
1	C	-0.084
2	C	-0.079
3	C	0.316
4	O	-0.153

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

using model chemistry: B3PW91/6-311G**

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>	67.588
(<r²>)^1/2	8.221

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

using model chemistry: B3PW91/6-311G**

States and conformations

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