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	hartrees
Energy at 0K	-188.862311
Energy at 298.15K	-188.860043
HF Energy	-188.323212
Nuclear repulsion energy	75.911905

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2361	2230	1760.51
2	Σ	2006	1894	30.77
3	Σ	979	924	0.02
4	Π	600	567	42.28
4	Π	600	567	42.28
5	Π	143	135	2.57
5	Π	143	135	2.57

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.042
C2	0.000	0.000	-0.764
C3	0.000	0.000	0.540
O4	0.000	0.000	1.699

	C1	C2	C3	O4
C1		1.2777	2.5819	3.7409
C2	1.2777		1.3042	2.4632
C3	2.5819	1.3042		1.1590
O4	3.7409	2.4632	1.1590

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

using model chemistry: CCSD/6-31G*

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: CCSD/6-31G*

States and conformations

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