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	hartrees
Energy at 0K	-189.255207
Energy at 298.15K	-189.252958
HF Energy	-189.255207
Nuclear repulsion energy	76.623713

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2366	2274	1582.71
2	Σ	1994	1917	56.58
3	Σ	974	936	1.27
4	Π	610	586	25.79
4	Π	610	586	25.79
5	Π	141	135	6.08
5	Π	141	135	6.08

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.024
C2	0.000	0.000	-0.757
C3	0.000	0.000	0.537
O4	0.000	0.000	1.683

	C1	C2	C3	O4
C1		1.2673	2.5617	3.7072
C2	1.2673		1.2943	2.4398
C3	2.5617	1.2943		1.1455
O4	3.7072	2.4398	1.1455

Number	Element	Mulliken
1	C	-0.002
2	C	-0.246
3	C	0.319
4	O	-0.071

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

using model chemistry: HSEh1PBE/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>	67.449
(<r²>)^1/2	8.213

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

using model chemistry: HSEh1PBE/cc-pVTZ

States and conformations

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