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	hartrees
Energy at 0K	-78.210899
Energy at 298.15K	-78.214001
HF Energy	-78.008721
Nuclear repulsion energy	32.675190

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3112	2968	0.00
2	A_g	1639	1563	0.00
3	A_g	1359	1296	0.00
4	A_u	1006	959	0.00
5	B_1u	3083	2941	26.22
6	B_1u	1492	1423	9.88
7	B_2g	816	778	0.00
8	B_2u	3212	3063	66.03
9	B_2u	818	780	2.33
10	B_3g	3178	3030	0.00
11	B_3g	1247	1189	0.00
12	B_3u	939	895	123.03

Atom	y (Å)	z (Å)
C1	0.000	0.685
C2	0.000	-0.685
H3	0.934	1.263
H4	-0.934	1.263
H5	-0.934	-1.263
H6	0.934	-1.263

	C1	C2	H3	H4	H5	H6
C1		1.3701	1.0979	1.0979	2.1599	2.1599
C2	1.3701		2.1599	2.1599	1.0979	1.0979
H3	1.0979	2.1599		1.8673	3.1407	2.5253
H4	1.0979	2.1599	1.8673		2.5253	3.1407
H5	2.1599	1.0979	3.1407	2.5253		1.8673
H6	2.1599	1.0979	2.5253	3.1407	1.8673

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.744	C1	C2	H6	121.744
C2	C1	H3	121.744	C2	C1	H4	121.744
H3	C1	H4	116.512	H5	C2	H6	116.512

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: QCISD/LANL2DZ

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: QCISD/LANL2DZ

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)