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	hartrees
Energy at 0K	-188.883027
Energy at 298.15K	-188.880774
HF Energy	-188.341187
Nuclear repulsion energy	75.594501

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2342	2218	1752.93
2	Σ	1987	1882	44.46
3	Σ	964	913	0.02
4	Π	608	576	37.67
4	Π	608	576	37.67
5	Π	142	134	2.37
5	Π	142	134	2.37

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.055
C2	0.000	0.000	-0.767
C3	0.000	0.000	0.550
O4	0.000	0.000	1.705

	C1	C2	C3	O4
C1		1.2881	2.6056	3.7600
C2	1.2881		1.3174	2.4719
C3	2.6056	1.3174		1.1544
O4	3.7600	2.4719	1.1544

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

using model chemistry: CCSD/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: CCSD/cc-pVDZ

States and conformations

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