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	hartrees
Energy at 0K	-189.083946
Energy at 298.15K	-189.081611
HF Energy	-188.389776
Nuclear repulsion energy	75.939026

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	2285	2168
2	Σ	1913	1815
3	Σ	939	891
4	Π	581	551
4	Π	581	551
5	Π	128	121
5	Π	127	120

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.044
C2	0.000	0.000	-0.762
C3	0.000	0.000	0.542
O4	0.000	0.000	1.698

	C1	C2	C3	O4
C1		1.2818	2.5852	3.7414
C2	1.2818		1.3035	2.4596
C3	2.5852	1.3035		1.1561
O4	3.7414	2.4596	1.1561

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

using model chemistry: QCISD(T)/cc-pVTZ

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(T)/cc-pVTZ

States and conformations

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