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	hartrees
Energy at 0K	-76.437252
Energy at 298.15K
Nuclear repulsion energy

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	-0.478
C2	0.000	0.000	0.735
H3	0.000	0.000	-1.542

	C1	C2	H3
C1		1.2135	1.0640
C2	1.2135		2.2775
H3	1.0640	2.2775

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

using model chemistry: CCSD(T)/6-31G(2df,p)

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: CCSD(T)/6-31G(2df,p)

States and conformations

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