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	hartrees
Energy at 0K	-76.569128
Energy at 298.15K	-76.567433
HF Energy	-76.569128
Nuclear repulsion energy	20.136717

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	3491	3333	52.49
2	Σ	2113	2017	5.92
3	Π	350	334	0.06
3	Π	350	334	0.06

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-0.476
C2	0.000	0.000	0.733
H3	0.000	0.000	-1.542

	C1	C2	H3
C1		1.2085	1.0664
C2	1.2085		2.2749
H3	1.0664	2.2749

Number	Element	Mulliken
1	C	-0.052
2	C	-0.126
3	H	0.178

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

using model chemistry: B1B95/6-31G**

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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<r²>	13.685
(<r²>)^1/2	3.699

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

using model chemistry: B1B95/6-31G**

States and conformations

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