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	hartrees
Energy at 0K	-188.126281
Energy at 298.15K
HF Energy	-187.984539
Nuclear repulsion energy	75.457541

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2308	2308	985.54
2	Σ	1885	1885	4.77
3	Σ	945	945	1.30
4	Π	723	723	31.17
4	Π	723	723	31.17
5	Π	185	185	3.24
5	Π	185	185	3.24

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.048
C2	0.000	0.000	-0.763
C3	0.000	0.000	0.528
O4	0.000	0.000	1.712

	C1	C2	C3	O4
C1		1.2852	2.5763	3.7597
C2	1.2852		1.2912	2.4745
C3	2.5763	1.2912		1.1834
O4	3.7597	2.4745	1.1834

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

using model chemistry: B2PLYP=FULLultrafine/3-21G*

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

using model chemistry: B2PLYP=FULLultrafine/3-21G*

States and conformations

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