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	hartrees
Energy at 0K	-76.274451
Energy at 298.15K	-76.273324
HF Energy	-76.126988
Nuclear repulsion energy	20.223437

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	3502	3360	43.60
2	Σ	2178	2090	3.07
3	Π	762	731	30.79
3	Π	762	731	30.79

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-0.472
C2	0.000	0.000	0.729
H3	0.000	0.000	-1.542

	C1	C2	H3
C1		1.2013	1.0698
C2	1.2013		2.2712
H3	1.0698	2.2712

All results from a given calculation for C₂H (Ethynyl radical)

using model chemistry: CCD/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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All results from a given calculation for C2H (Ethynyl radical)

using model chemistry: CCD/6-31G

States and conformations

All results from a given calculation for C₂H (Ethynyl radical)