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	hartrees
Energy at 0K	-13.451221
Energy at 298.15K	-13.454313
HF Energy	-13.240902
Nuclear repulsion energy	19.107477

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3054	3054
2	A_g	1612	1612
3	A_g	1339	1339
4	A_u	1001	1001
5	B_1u	3026	3026
6	B_1u	1478	1478
7	B_2g	761	761
8	B_2u	3154	3154
9	B_2u	817	817
10	B_3g	3123	3123
11	B_3g	1226	1226
12	B_3u	923	923

Atom	y (Å)	z (Å)
C1	0.000	0.687
C2	0.000	-0.687
H3	0.935	1.264
H4	-0.935	1.264
H5	-0.935	-1.264
H6	0.935	-1.264

	C1	C2	H3	H4	H5	H6
C1		1.3745	1.0981	1.0981	2.1634	2.1634
C2	1.3745		2.1634	2.1634	1.0981	1.0981
H3	1.0981	2.1634		1.8690	3.1437	2.5278
H4	1.0981	2.1634	1.8690		2.5278	3.1437
H5	2.1634	1.0981	3.1437	2.5278		1.8690
H6	2.1634	1.0981	2.5278	3.1437	1.8690

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.677	C1	C2	H6	121.677
C2	C1	H3	121.677	C2	C1	H4	121.677
H3	C1	H4	116.645	H5	C2	H6	116.645

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: MP4=FULL/CEP-121G

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 C2H4 (Ethylene)

using model chemistry: MP4=FULL/CEP-121G

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)