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	hartrees
Energy at 0K	-13.531721
Energy at 298.15K	-13.534789
HF Energy	-13.263299
Nuclear repulsion energy	19.076885

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3161	3015	0.00
2	A_g	1688	1610	0.00
3	A_g	1354	1291	0.00
4	A_u	1006	959	0.00
5	B_1u	3138	2993	29.83
6	B_1u	1462	1394	6.30
7	B_2g	776	740	0.00
8	B_2u	3253	3102	64.12
9	B_2u	794	757	0.73
10	B_3g	3210	3061	0.00
11	B_3g	1189	1134	0.00
12	B_3u	918	875	133.76

Atom	y (Å)	z (Å)
C1	0.000	0.689
C2	0.000	-0.689
H3	0.940	1.260
H4	-0.940	1.260
H5	-0.940	-1.260
H6	0.940	-1.260

	C1	C2	H3	H4	H5	H6
C1		1.3775	1.1000	1.1000	2.1637	2.1637
C2	1.3775		2.1637	2.1637	1.1000	1.1000
H3	1.1000	2.1637		1.8798	3.1441	2.5202
H4	1.1000	2.1637	1.8798		2.5202	3.1441
H5	2.1637	1.1000	3.1441	2.5202		1.8798
H6	2.1637	1.1000	2.5202	3.1441	1.8798

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.296	C1	C2	H6	121.296
C2	C1	H3	121.296	C2	C1	H4	121.296
H3	C1	H4	117.407	H5	C2	H6	117.407

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: QCISD/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/CEP-31G*

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)