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	hartrees
Energy at 0K	-189.065434
Energy at 298.15K	-189.063186
HF Energy	-188.364151
Nuclear repulsion energy	75.224974

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2214	2129
2	Σ	1792	1723
3	Σ	899	864
4	Π	579	557
4	Π	579	557
5	Π	159	152
5	Π	159	152

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.063
C2	0.000	0.000	-0.764
C3	0.000	0.000	0.542
O4	0.000	0.000	1.714

	C1	C2	C3	O4
C1		1.2984	2.6046	3.7761
C2	1.2984		1.3062	2.4777
C3	2.6046	1.3062		1.1715
O4	3.7761	2.4777	1.1715

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

using model chemistry: MP4=FULL/6-311G**

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/6-311G**

States and conformations

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