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	hartrees
Energy at 0K	-189.468332
Energy at 298.15K	-189.466070
HF Energy	-189.468332
Nuclear repulsion energy	76.299545

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2320	2247	1426.77
2	Σ	1950	1888	38.49
3	Σ	955	925	2.18
4	Π	594	575	22.64
4	Π	594	575	22.64
5	Π	143	139	6.30
5	Π	143	139	6.30

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.032
C2	0.000	0.000	-0.759
C3	0.000	0.000	0.537
O4	0.000	0.000	1.690

	C1	C2	C3	O4
C1		1.2726	2.5688	3.7222
C2	1.2726		1.2962	2.4495
C3	2.5688	1.2962		1.1534
O4	3.7222	2.4495	1.1534

Number	Element	Mulliken
1	C	-0.039
2	C	-0.217
3	C	0.338
4	O	-0.082

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

using model chemistry: TPSSh/cc-pVTZ

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>	67.816
(<r²>)^1/2	8.235

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

using model chemistry: TPSSh/cc-pVTZ

States and conformations

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