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	hartrees
Energy at 0K	-76.372314
Energy at 298.15K	-76.371189
HF Energy	-76.156395
Nuclear repulsion energy	20.274908

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	3527	3375	54.33
2	Σ	2336	2235	7.80
3	Π	761	728	13.85
3	Π	761	728	13.85

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-0.469
C2	0.000	0.000	0.727
H3	0.000	0.000	-1.546

	C1	C2	H3
C1		1.1960	1.0766
C2	1.1960		2.2726
H3	1.0766	2.2726

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

using model chemistry: CCD/cc-pVDZ

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/cc-pVDZ

States and conformations

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