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	hartrees
Energy at 0K	-77.134447
Energy at 298.15K	-77.136059
HF Energy	-76.961506
Nuclear repulsion energy	28.489565

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A'	3240	3142
2	A'	3165	3070
3	A'	3078	2985
4	A'	1742	1690
5	A'	1494	1449
6	A'	1143	1108
7	A'	796	772
8	A"	1056	1025
9	A"	983	953

Atom	x (Å)	y (Å)
C1	0.050	0.720
C2	0.050	-0.581
H3	-0.701	1.502
H4	-0.873	-1.171
H5	0.973	-1.164

	C1	C2	H3	H4	H5
C1		1.3008	1.0845	2.1040	2.0972
C2	1.3008		2.2147	1.0957	1.0910
H3	1.0845	2.2147		2.6788	3.1476
H4	2.1040	1.0957	2.6788		1.8459
H5	2.0972	1.0910	3.1476	1.8459

atom1	atom2	atom3	angle		atom1	atom2	atom3	angle
C1	C2	H4	122.559		C1	C2	H5	122.279
C2	C1	H3	136.199		H4	C2	H5	115.162

All results from a given calculation for C₂H₃ (vinyl)

using model chemistry: MP4/3-21G

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 C2H3 (vinyl)

using model chemistry: MP4/3-21G

States and conformations

All results from a given calculation for C₂H₃ (vinyl)