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	hartrees
Energy at 0K	-189.377474
Energy at 298.15K	-189.375216
HF Energy	-189.377474
Nuclear repulsion energy	76.545359

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2352	2261	1534.33
2	Σ	1981	1905	49.73
3	Σ	968	931	1.50
4	Π	604	581	24.81
4	Π	604	581	24.81
5	Π	140	135	6.23
5	Π	140	135	6.23

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.026
C2	0.000	0.000	-0.758
C3	0.000	0.000	0.537
O4	0.000	0.000	1.685

	C1	C2	C3	O4
C1		1.2683	2.5631	3.7107
C2	1.2683		1.2948	2.4423
C3	2.5631	1.2948		1.1476
O4	3.7107	2.4423	1.1476

Number	Element	Mulliken
1	C	-0.030
2	C	-0.234
3	C	0.338
4	O	-0.074

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

using model chemistry: B3PW91/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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<r²>	67.512
(<r²>)^1/2	8.217

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

using model chemistry: B3PW91/cc-pVTZ

States and conformations

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