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	hartrees
Energy at 0K	-78.455384
Energy at 298.15K	-78.458575
HF Energy	-78.064176
Nuclear repulsion energy	33.542882

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3202	3036	0.00
2	A_g	1715	1626	0.00
3	A_g	1398	1325	0.00
4	A_u	1068	1013	0.00
5	B_1u	3178	3013	13.29
6	B_1u	1503	1425	9.11
7	B_2g	983	932	0.00
8	B_2u	3268	3098	19.27
9	B_2u	839	795	0.05
10	B_3g	3235	3067	0.00
11	B_3g	1258	1193	0.00
12	B_3u	999	947	91.83

Atom	y (Å)	z (Å)
C1	0.000	0.664
C2	0.000	-0.664
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		1.3271	1.0772	1.0772	2.1009	2.1009
C2	1.3271		2.1009	2.1009	1.0772	1.0772
H3	1.0772	2.1009		1.8377	3.0638	2.4515
H4	1.0772	2.1009	1.8377		2.4515	3.0638
H5	2.1009	1.0772	3.0638	2.4515		1.8377
H6	2.1009	1.0772	2.4515	3.0638	1.8377

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.458	C1	C2	H6	121.458
C2	C1	H3	121.458	C2	C1	H4	121.458
H3	C1	H4	117.083	H5	C2	H6	117.083

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CCSD=FULL/cc-pVTZ

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-pVTZ

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)