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	hartrees
Energy at 0K	-13.449776
Energy at 298.15K	-13.452882
HF Energy	-13.241037
Nuclear repulsion energy	19.116526

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3051	3051	0.00
2	A_g	1622	1622	0.00
3	A_g	1344	1344	0.00
4	A_u	997	997	0.00
5	B_1u	3024	3024	25.89
6	B_1u	1478	1478	5.83
7	B_2g	796	796	0.00
8	B_2u	3148	3148	60.30
9	B_2u	822	822	1.33
10	B_3g	3118	3118	0.00
11	B_3g	1227	1227	0.00
12	B_3u	930	930	115.50

Atom	y (Å)	z (Å)
C1	0.000	0.686
C2	0.000	-0.686
H3	0.934	1.264
H4	-0.934	1.264
H5	-0.934	-1.264
H6	0.934	-1.264

	C1	C2	H3	H4	H5	H6
C1		1.3726	1.0981	1.0981	2.1621	2.1621
C2	1.3726		2.1621	2.1621	1.0981	1.0981
H3	1.0981	2.1621		1.8683	3.1428	2.5271
H4	1.0981	2.1621	1.8683		2.5271	3.1428
H5	2.1621	1.0981	3.1428	2.5271		1.8683
H6	2.1621	1.0981	2.5271	3.1428	1.8683

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.713	C1	C2	H6	121.713
C2	C1	H3	121.713	C2	C1	H4	121.713
H3	C1	H4	116.574	H5	C2	H6	116.574

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CCSD=FULL/CEP-121G

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/CEP-121G

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)