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	hartrees
Energy at 0K	-77.126473
Energy at 298.15K	-77.128092
HF Energy	-76.961542
Nuclear repulsion energy	28.558684

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A'	3275	3275	1.82
2	A'	3208	3208	6.73
3	A'	3123	3123	2.45
4	A'	1735	1735	2.53
5	A'	1506	1506	6.87
6	A'	1158	1158	9.70
7	A'	807	807	18.87
8	A"	1070	1070	80.65
9	A"	993	993	23.91

Atom	x (Å)	y (Å)
C1	0.050	0.718
C2	0.050	-0.580
H3	-0.699	1.498
H4	-0.871	-1.167
H5	0.971	-1.159

	C1	C2	H3	H4	H5
C1		1.2982	1.0818	2.0979	2.0911
C2	1.2982		2.2093	1.0922	1.0878
H3	1.0818	2.2093		2.6705	3.1388
H4	2.0979	1.0922	2.6705		1.8419
H5	2.0911	1.0878	3.1388	1.8419

atom1	atom2	atom3	angle		atom1	atom2	atom3	angle
C1	C2	H4	122.489		C1	C2	H5	122.182
C2	C1	H3	136.149		H4	C2	H5	115.330

All results from a given calculation for C₂H₃ (vinyl)

using model chemistry: MP3=FULL/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: MP3=FULL/3-21G*

States and conformations

All results from a given calculation for C₂H₃ (vinyl)