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	hartrees
Energy at 0K	-78.357587
Energy at 298.15K	-78.360791
HF Energy	-78.043059
Nuclear repulsion energy	33.521066

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3255	3255	0.00
2	A_g	1748	1748	0.00
3	A_g	1423	1423	0.00
4	A_u	1100	1100	0.00
5	B_1u	3234	3234	9.68
6	B_1u	1517	1517	6.79
7	B_2g	1010	1010	0.00
8	B_2u	3341	3341	18.31
9	B_2u	846	846	0.19
10	B_3g	3316	3316	0.00
11	B_3g	1276	1276	0.00
12	B_3u	1023	1023	77.51

Atom	y (Å)	z (Å)
C1	0.000	0.663
C2	0.000	-0.663
H3	0.918	1.231
H4	-0.918	1.231
H5	-0.918	-1.231
H6	0.918	-1.231

	C1	C2	H3	H4	H5	H6
C1		1.3252	1.0800	1.0800	2.1046	2.1046
C2	1.3252		2.1046	2.1046	1.0800	1.0800
H3	1.0800	2.1046		1.8364	3.0717	2.4623
H4	1.0800	2.1046	1.8364		2.4623	3.0717
H5	2.1046	1.0800	3.0717	2.4623		1.8364
H6	2.1046	1.0800	2.4623	3.0717	1.8364

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.768	C1	C2	H6	121.768
C2	C1	H3	121.768	C2	C1	H4	121.768
H3	C1	H4	116.464	H5	C2	H6	116.464

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CISD/6-31G(2df,p)

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/6-31G(2df,p)

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)