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	hartrees
Energy at 0K	-78.503801
Energy at 298.15K	-78.506988
HF Energy	-78.069529
Nuclear repulsion energy	33.560077

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3192	3192	0.00
2	A_g	1713	1713	0.00
3	A_g	1394	1394	0.00
4	A_u	1070	1070	0.00
5	B_1u	3174	3174	12.78
6	B_1u	1497	1497	9.61
7	B_2g	988	988	0.00
8	B_2u	3279	3279	17.23
9	B_2u	837	837	0.02
10	B_3g	3254	3254	0.00
11	B_3g	1257	1257	0.00
12	B_3u	993	993	91.54

Atom	y (Å)	z (Å)
C1	0.000	0.662
C2	0.000	-0.662
H3	0.919	1.226
H4	-0.919	1.226
H5	-0.919	-1.226
H6	0.919	-1.226

	C1	C2	H3	H4	H5	H6
C1		1.3249	1.0780	1.0780	2.1001	2.1001
C2	1.3249		2.1001	2.1001	1.0780	1.0780
H3	1.0780	2.1001		1.8382	3.0642	2.4516
H4	1.0780	2.1001	1.8382		2.4516	3.0642
H5	2.1001	1.0780	3.0642	2.4516		1.8382
H6	2.1001	1.0780	2.4516	3.0642	1.8382

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.506	C1	C2	H6	121.506
C2	C1	H3	121.506	C2	C1	H4	121.506
H3	C1	H4	116.988	H5	C2	H6	116.988

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CCSD=FULL/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: CCSD=FULL/cc-pVQZ

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)