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	hartrees
Energy at 0K	-13.568830
Energy at 298.15K	-13.571929
HF Energy	-13.275557
Nuclear repulsion energy	19.314076

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3140	2963
2	A_g	1649	1556
3	A_g	1353	1277
4	A_u	1031	973
5	B_1u	3121	2946
6	B_1u	1475	1392
7	B_2g	791	747
8	B_2u	3237	3055
9	B_2u	817	771
10	B_3g	3212	3031
11	B_3g	1226	1157
12	B_3u	932	879

Atom	y (Å)	z (Å)
C1	0.000	0.677
C2	0.000	-0.677
H3	0.930	1.247
H4	-0.930	1.247
H5	-0.930	-1.247
H6	0.930	-1.247

	C1	C2	H3	H4	H5	H6
C1		1.3539	1.0907	1.0907	2.1369	2.1369
C2	1.3539		2.1369	2.1369	1.0907	1.0907
H3	1.0907	2.1369		1.8597	3.1111	2.4941
H4	1.0907	2.1369	1.8597		2.4941	3.1111
H5	2.1369	1.0907	3.1111	2.4941		1.8597
H6	2.1369	1.0907	2.4941	3.1111	1.8597

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.513	C1	C2	H6	121.513
C2	C1	H3	121.513	C2	C1	H4	121.513
H3	C1	H4	116.974	H5	C2	H6	116.974

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: MP4/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/CEP-121G*

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)