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	hartrees
Energy at 0K	-13.428674
Energy at 298.15K	-13.431713
HF Energy	-13.231650
Nuclear repulsion energy	18.859202

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3092	2949
2	A_g	1624	1548
3	A_g	1328	1267
4	A_u	967	922
5	B_1u	3064	2922
6	B_1u	1463	1395
7	B_2g	728	694
8	B_2u	3188	3041
9	B_2u	795	758
10	B_3g	3144	2998
11	B_3g	1190	1135
12	B_3u	894	853

Atom	y (Å)	z (Å)
C1	0.000	0.700
C2	0.000	-0.700
H3	0.945	1.279
H4	-0.945	1.279
H5	-0.945	-1.279
H6	0.945	-1.279

	C1	C2	H3	H4	H5	H6
C1		1.4001	1.1079	1.1079	2.1928	2.1928
C2	1.4001		2.1928	2.1928	1.1079	1.1079
H3	1.1079	2.1928		1.8895	3.1798	2.5575
H4	1.1079	2.1928	1.8895		2.5575	3.1798
H5	2.1928	1.1079	3.1798	2.5575		1.8895
H6	2.1928	1.1079	2.5575	3.1798	1.8895

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.487	C1	C2	H6	121.487
C2	C1	H3	121.487	C2	C1	H4	121.487
H3	C1	H4	117.026	H5	C2	H6	117.026

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: QCISD(T)/CEP-31G

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: QCISD(T)/CEP-31G

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)