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	hartrees
Energy at 0K	-76.375428
Energy at 298.15K	-76.374294
HF Energy	-76.154952
Nuclear repulsion energy	20.426336

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	3571	3365	51.68
2	Σ	2368	2231	5.67
3	Π	752	709	18.61
3	Π	752	709	18.61

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-0.467
C2	0.000	0.000	0.722
H3	0.000	0.000	-1.530

	C1	C2	H3
C1		1.1884	1.0632
C2	1.1884		2.2516
H3	1.0632	2.2516

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

using model chemistry: CCD/6-31+G**

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/6-31+G**

States and conformations

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