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	hartrees
Energy at 0K	-78.414708
Energy at 298.15K	-78.417915
HF Energy	-78.069651
Nuclear repulsion energy	33.635260

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3233	3233	0.00
2	A_g	1745	1745	0.00
3	A_g	1416	1416	0.00
4	A_u	1094	1094	0.00
5	B_1u	3214	3214	12.24
6	B_1u	1519	1519	10.07
7	B_2g	1018	1018	0.00
8	B_2u	3321	3321	17.41
9	B_2u	849	849	0.01
10	B_3g	3295	3295	0.00
11	B_3g	1281	1281	0.00
12	B_3u	1017	1017	95.64

Atom	y (Å)	z (Å)
C1	0.000	0.661
C2	0.000	-0.661
H3	0.918	1.223
H4	-0.918	1.223
H5	-0.918	-1.223
H6	0.918	-1.223

	C1	C2	H3	H4	H5	H6
C1		1.3211	1.0764	1.0764	2.0955	2.0955
C2	1.3211		2.0955	2.0955	1.0764	1.0764
H3	1.0764	2.0955		1.8351	3.0584	2.4467
H4	1.0764	2.0955	1.8351		2.4467	3.0584
H5	2.0955	1.0764	3.0584	2.4467		1.8351
H6	2.0955	1.0764	2.4467	3.0584	1.8351

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.524	C1	C2	H6	121.524
C2	C1	H3	121.524	C2	C1	H4	121.524
H3	C1	H4	116.952	H5	C2	H6	116.952

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CISD/cc-pVQZ

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/cc-pVQZ

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)