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	hartrees
Energy at 0K	-78.349197
Energy at 298.15K	-78.352369
HF Energy	-78.039940
Nuclear repulsion energy	33.029310

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3177	3177	0.00
2	A_g	1696	1696	0.00
3	A_g	1373	1373	0.00
4	A_u	1047	1047	0.00
5	B_1u	3156	3156	13.73
6	B_1u	1473	1473	5.61
7	B_2g	937	937	0.00
8	B_2u	3271	3271	23.82
9	B_2u	829	829	0.20
10	B_3g	3246	3246	0.00
11	B_3g	1240	1240	0.00
12	B_3u	968	968	76.38

Atom	y (Å)	z (Å)
C1	0.000	0.673
C2	0.000	-0.673
H3	0.935	1.246
H4	-0.935	1.246
H5	-0.935	-1.246
H6	0.935	-1.246

	C1	C2	H3	H4	H5	H6
C1		1.3451	1.0963	1.0963	2.1339	2.1339
C2	1.3451		2.1339	2.1339	1.0963	1.0963
H3	1.0963	2.1339		1.8690	3.1147	2.4916
H4	1.0963	2.1339	1.8690		2.4916	3.1147
H5	2.1339	1.0963	3.1147	2.4916		1.8690
H6	2.1339	1.0963	2.4916	3.1147	1.8690

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.526	C1	C2	H6	121.526
C2	C1	H3	121.526	C2	C1	H4	121.526
H3	C1	H4	116.947	H5	C2	H6	116.947

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: QCISD/cc-pCVDZ

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-pCVDZ

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)