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	hartrees
Energy at 0K	-78.346023
Energy at 298.15K	-78.349184
HF Energy	-78.038817
Nuclear repulsion energy	32.996358

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3179	3050	0.00
2	A_g	1696	1627	0.00
3	A_g	1372	1317	0.00
4	A_u	1045	1003	0.00
5	B_1u	3159	3030	14.01
6	B_1u	1471	1411	5.43
7	B_2g	935	897	0.00
8	B_2u	3273	3140	23.93
9	B_2u	827	794	0.18
10	B_3g	3247	3115	0.00
11	B_3g	1239	1188	0.00
12	B_3u	967	928	75.12

Atom	y (Å)	z (Å)
C1	0.000	0.673
C2	0.000	-0.673
H3	0.935	1.247
H4	-0.935	1.247
H5	-0.935	-1.247
H6	0.935	-1.247

	C1	C2	H3	H4	H5	H6
C1		1.3468	1.0971	1.0971	2.1360	2.1360
C2	1.3468		2.1360	2.1360	1.0971	1.0971
H3	1.0971	2.1360		1.8706	3.1175	2.4939
H4	1.0971	2.1360	1.8706		2.4939	3.1175
H5	2.1360	1.0971	3.1175	2.4939		1.8706
H6	2.1360	1.0971	2.4939	3.1175	1.8706

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.519	C1	C2	H6	121.519
C2	C1	H3	121.519	C2	C1	H4	121.519
H3	C1	H4	116.963	H5	C2	H6	116.963

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: QCISD/cc-pVDZ

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/cc-pVDZ

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)