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	hartrees
Energy at 0K	-13.276876
Energy at 298.15K	-13.280119
HF Energy	-13.276876
Nuclear repulsion energy	19.608745

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)	Raman Act (Å⁴/u)	Dep P	Dep U
1	A_g	3313	2993	0.00	197.59	0.18	0.31
2	A_g	1806	1632	0.00	27.84	0.06	0.12
3	A_g	1464	1323	0.00	56.00	0.34	0.50
4	A_u	1134	1025	0.00	0.00	0.00	0.00
5	B_1u	3292	2974	28.63	0.00	0.00	0.00
6	B_1u	1586	1433	7.84	0.00	0.00	0.00
7	B_2g	1074	971	0.00	6.41	0.75	0.86
8	B_2u	3402	3073	50.23	0.00	0.00	0.00
9	B_2u	881	795	0.32	0.00	0.00	0.00
10	B_3g	3374	3048	0.00	126.46	0.75	0.86
11	B_3g	1334	1205	0.00	1.09	0.75	0.86
12	B_3u	1078	974	133.46	0.00	0.00	0.00

Atom	y (Å)	z (Å)
C1	0.000	0.663
C2	0.000	-0.663
H3	0.918	1.230
H4	-0.918	1.230
H5	-0.918	-1.230
H6	0.918	-1.230

	C1	C2	H3	H4	H5	H6
C1		1.3267	1.0785	1.0785	2.1037	2.1037
C2	1.3267		2.1037	2.1037	1.0785	1.0785
H3	1.0785	2.1037		1.8360	3.0688	2.4590
H4	1.0785	2.1037	1.8360		2.4590	3.0688
H5	2.1037	1.0785	3.0688	2.4590		1.8360
H6	2.1037	1.0785	2.4590	3.0688	1.8360

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.666	C1	C2	H6	121.666
C2	C1	H3	121.666	C2	C1	H4	121.666
H3	C1	H4	116.669	H5	C2	H6	116.669

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: HF/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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Number	Element	Mulliken
1	C	-0.350
2	C	-0.350
3	H	0.175
4	H	0.175
5	H	0.175
6	H	0.175

<r²>	21.304
(<r²>)^1/2	4.616

All results from a given calculation for C2H4 (Ethylene)

using model chemistry: HF/CEP-121G*

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)