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	hartrees
Energy at 0K	-188.925665
Energy at 298.15K	-188.923454
HF Energy	-188.316807
Nuclear repulsion energy	74.940504

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2226	2141
2	Σ	1799	1730
3	Σ	911	876
4	Π	570	548
4	Π	570	548
5	Π	178	171
5	Π	178	171

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.067
C2	0.000	0.000	-0.767
C3	0.000	0.000	0.538
O4	0.000	0.000	1.722

	C1	C2	C3	O4
C1		1.2998	2.6046	3.7881
C2	1.2998		1.3048	2.4883
C3	2.6046	1.3048		1.1835
O4	3.7881	2.4883	1.1835

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

using model chemistry: MP4=FULL/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: MP4=FULL/6-31G*

States and conformations

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