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	hartrees
Energy at 0K	-78.322258
Energy at 298.15K	-78.325407
HF Energy	-78.030282
Nuclear repulsion energy	33.140097

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3170	3041
2	A_g	1693	1624
3	A_g	1388	1331
4	A_u	1043	1001
5	B_1u	3152	3024
6	B_1u	1501	1440
7	B_2g	910	873
8	B_2u	3253	3121
9	B_2u	839	805
10	B_3g	3230	3099
11	B_3g	1251	1200
12	B_3u	961	922

Atom	y (Å)	z (Å)
C1	0.000	0.672
C2	0.000	-0.672
H3	0.926	1.246
H4	-0.926	1.246
H5	-0.926	-1.246
H6	0.926	-1.246

	C1	C2	H3	H4	H5	H6
C1		1.3430	1.0897	1.0897	2.1292	2.1292
C2	1.3430		2.1292	2.1292	1.0897	1.0897
H3	1.0897	2.1292		1.8523	3.1045	2.4914
H4	1.0897	2.1292	1.8523		2.4914	3.1045
H5	2.1292	1.0897	3.1045	2.4914		1.8523
H6	2.1292	1.0897	2.4914	3.1045	1.8523

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.797	C1	C2	H6	121.797
C2	C1	H3	121.797	C2	C1	H4	121.797
H3	C1	H4	116.406	H5	C2	H6	116.406

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: QCISD(T)/6-31G*

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(T)/6-31G*

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)