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	hartrees
Energy at 0K	-13.410146
Energy at 298.15K	-13.413249
HF Energy	-13.233620
Nuclear repulsion energy	18.998340

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3167	2919	0.00
2	A_g	1684	1552	0.00
3	A_g	1372	1265	0.00
4	A_u	1011	932	0.00
5	B_1u	3133	2888	40.16
6	B_1u	1493	1376	7.65
7	B_2g	809	746	0.00
8	B_2u	3257	3003	103.81
9	B_2u	818	754	1.38
10	B_3g	3213	2962	0.00
11	B_3g	1219	1124	0.00
12	B_3u	942	869	146.16

Atom	y (Å)	z (Å)
C1	0.000	0.694
C2	0.000	-0.694
H3	0.939	1.269
H4	-0.939	1.269
H5	-0.939	-1.269
H6	0.939	-1.269

	C1	C2	H3	H4	H5	H6
C1		1.3872	1.1013	1.1013	2.1759	2.1759
C2	1.3872		2.1759	2.1759	1.1013	1.1013
H3	1.1013	2.1759		1.8778	3.1576	2.5385
H4	1.1013	2.1759	1.8778		2.5385	3.1576
H5	2.1759	1.1013	3.1576	2.5385		1.8778
H6	2.1759	1.1013	2.5385	3.1576	1.8778

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.514	C1	C2	H6	121.514
C2	C1	H3	121.514	C2	C1	H4	121.514
H3	C1	H4	116.972	H5	C2	H6	116.972

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CISD/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: CISD/CEP-31G

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)