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	hartrees
Energy at 0K	-149.299733
Energy at 298.15K	-149.299004
HF Energy	-149.113083
Nuclear repulsion energy	50.107873

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	3631	3631	91.51
2	Σ	1987	1987	14.34
3	Σ	1067	1067	1.98
4	Π	560	560	5.95
4	Π	523	523	10.52
5	Π	393	393	0.52
5	Π	302	302	24.39

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-0.035
C2	0.000	0.000	-1.275
O3	0.000	0.000	1.278
H4	0.000	0.000	-2.361

	C1	C2	O3	H4
C1		1.2402	1.3129	2.3260
C2	1.2402		2.5532	1.0858
O3	1.3129	2.5532		3.6390
H4	2.3260	1.0858	3.6390

All results from a given calculation for HCCO (ketenyl radical)

using model chemistry: QCISD/STO-3G

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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