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	hartrees
Energy at 0K	-189.449740
Energy at 298.15K	-189.447500
HF Energy	-189.449740
Nuclear repulsion energy	76.197050

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2332	2332	1397.39
2	Σ	1950	1950	33.61
3	Σ	956	956	2.71
4	Π	604	604	30.21
4	Π	604	604	30.21
5	Π	147	147	4.11
5	Π	147	147	4.11

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.035
C2	0.000	0.000	-0.759
C3	0.000	0.000	0.538
O4	0.000	0.000	1.692

	C1	C2	C3	O4
C1		1.2766	2.5733	3.7277
C2	1.2766		1.2967	2.4511
C3	2.5733	1.2967		1.1544
O4	3.7277	2.4511	1.1544

Number	Element	Mulliken
1	C	-0.098
2	C	-0.053
3	C	0.314
4	O	-0.163

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

using model chemistry: TPSSh/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>	67.894
(<r²>)^1/2	8.240

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

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

States and conformations

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