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	hartrees
Energy at 0K	-188.408070
Energy at 298.15K	-188.405759
HF Energy	-188.408070
Nuclear repulsion energy	77.745109

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2464	2239	2750.46
2	Σ	2146	1949	287.59
3	Σ	1028	934	1.78
4	Π	678	616	50.27
4	Π	678	616	50.27
5	Π	99	90	1.86
5	Π	99	90	1.86

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-1.999
C2	0.000	0.000	-0.752
C3	0.000	0.000	0.541
O4	0.000	0.000	1.658

	C1	C2	C3	O4
C1		1.2467	2.5405	3.6567
C2	1.2467		1.2937	2.4100
C3	2.5405	1.2937		1.1163
O4	3.6567	2.4100	1.1163

Number	Element	Mulliken
1	C	-0.198
2	C	-0.145
3	C	0.902
4	O	-0.558

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

using model chemistry: HF/aug-cc-pVQZ

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>	66.390
(<r²>)^1/2	8.148

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

using model chemistry: HF/aug-cc-pVQZ

States and conformations

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