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	hartrees
Energy at 0K	-188.936067
Energy at 298.15K	-188.933843
HF Energy	-188.334180
Nuclear repulsion energy	74.596393

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2197	2121
2	Σ	1780	1718
3	Σ	897	866
4	Π	564	545
4	Π	564	545
5	Π	172	166
5	Π	172	166

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.082
C2	0.000	0.000	-0.770
C3	0.000	0.000	0.548
O4	0.000	0.000	1.728

	C1	C2	C3	O4
C1		1.3113	2.6299	3.8094
C2	1.3113		1.3186	2.4980
C3	2.6299	1.3186		1.1795
O4	3.8094	2.4980	1.1795

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

using model chemistry: MP4=FULL/cc-pVDZ

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/cc-pVDZ

States and conformations

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