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	hartrees
Energy at 0K	-76.255398
Energy at 298.15K	-76.254304
HF Energy	-76.126306
Nuclear repulsion energy	20.331144

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ	3561	3408	55.00
2	Σ	2255	2158	3.34
3	Π	809	774	30.85
3	Π	809	774	30.85

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-0.469
C2	0.000	0.000	0.725
H3	0.000	0.000	-1.535

	C1	C2	H3
C1		1.1947	1.0654
C2	1.1947		2.2600
H3	1.0654	2.2600

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

using model chemistry: MP2/6-31G

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: MP2/6-31G

States and conformations

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