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	hartrees
Energy at 0K	-189.101666
Energy at 298.15K	-189.099418
HF Energy	-188.959418
Nuclear repulsion energy	75.006445

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	2283	2283	1141.31
2	Σ	1858	1858	0.48
3	Σ	930	930	4.71
4	Π	548	548	26.98
4	Π	548	548	26.98
5	Π	172	172	4.93
5	Π	172	172	4.93

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-2.061
C2	0.000	0.000	-0.767
C3	0.000	0.000	0.533
O4	0.000	0.000	1.722

	C1	C2	C3	O4
C1		1.2942	2.5943	3.7829
C2	1.2942		1.3001	2.4887
C3	2.5943	1.3001		1.1886
O4	3.7829	2.4887	1.1886

Number	Element	Mulliken
1	C	0.074
2	C	-0.060
3	C	0.214
4	O	-0.229

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

using model chemistry: B2PLYP/6-31G

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>	69.605
(<r²>)^1/2	8.343

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

using model chemistry: B2PLYP/6-31G

States and conformations

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