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	hartrees
Energy at 0K	-189.204943
Energy at 298.15K	-189.202777
HF Energy	-189.204943
Nuclear repulsion energy	76.040984

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2378	2288	1500.13
2	Σ	1996	1920	34.38
3	Σ	978	940	2.59
4	Π	615	592	28.69
4	Π	615	592	28.69
5	Π	165	159	5.02
5	Π	165	159	5.02

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.041
C2	0.000	0.000	-0.761
C3	0.000	0.000	0.542
O4	0.000	0.000	1.695

	C1	C2	C3	O4
C1		1.2803	2.5836	3.7365
C2	1.2803		1.3033	2.4562
C3	2.5836	1.3033		1.1529
O4	3.7365	2.4562	1.1529

Number	Element	Mulliken
1	C	-0.160
2	C	0.078
3	C	0.105
4	O	-0.023

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

using model chemistry: HSEh1PBE/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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<r²>	68.074
(<r²>)^1/2	8.251

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

using model chemistry: HSEh1PBE/cc-pVDZ

States and conformations

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