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	hartrees
Energy at 0K	-76.465562
Energy at 298.15K	-76.463939
HF Energy	-76.176637
Nuclear repulsion energy	20.093721

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	Σ	3479	3326
2	Σ	2061	1970
3	Π	382	365
3	Π	382	365

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		1.2121	1.0644
C2	1.2121		2.2765
H3	1.0644	2.2765

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

using model chemistry: CCSD(T)=FULL/TZVP

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)=FULL/TZVP

States and conformations

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