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	hartrees
Energy at 0K	-76.103420
Energy at 298.15K	-76.101803
HF Energy	-76.103420
Nuclear repulsion energy	19.931213

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	3421	3351	60.51
2	Σ	2054	2012	6.82
3	Π	387	380	0.00
3	Π	387	380	0.00

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-0.481
C2	0.000	0.000	0.740
H3	0.000	0.000	-1.557

	C1	C2	H3
C1		1.2214	1.0758
C2	1.2214		2.2972
H3	1.0758	2.2972

Number	Element	Mulliken
1	C	-0.130
2	C	-0.102
3	H	0.232

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

using model chemistry: LSDA/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>	13.915
(<r²>)^1/2	3.730

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

using model chemistry: LSDA/6-31G

States and conformations

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