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	hartrees
Energy at 0K	-187.657441
Energy at 298.15K	-187.655127
HF Energy	-187.269863
Nuclear repulsion energy	75.304843

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2239	2152	1320.37
2	Σ	1879	1806	5.21
3	Σ	942	906	0.04
4	Π	687	660	48.56
4	Π	687	660	48.56
5	Π	103	99	0.93
5	Π	103	99	0.93

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.054
C2	0.000	0.000	-0.765
C3	0.000	0.000	0.532
O4	0.000	0.000	1.715

	C1	C2	C3	O4
C1		1.2889	2.5857	3.7682
C2	1.2889		1.2968	2.4793
C3	2.5857	1.2968		1.1825
O4	3.7682	2.4793	1.1825

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

using model chemistry: QCISD/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: QCISD/3-21G*

States and conformations

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