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	hartrees
Energy at 0K	-76.397701
Energy at 298.15K	-76.395872
HF Energy	-76.152029
Nuclear repulsion energy	19.973679

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	3508	3327
2	Σ	2062	1956
3	Π	292	277
3	Π	292	277

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-0.482
C2	0.000	0.000	0.739
H3	0.000	0.000	-1.547

	C1	C2	H3
C1		1.2210	1.0652
C2	1.2210		2.2861
H3	1.0652	2.2861

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

using model chemistry: CCSD(T)/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: CCSD(T)/6-31G**

States and conformations

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