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	hartrees
Energy at 0K	-13.511289
Energy at 298.15K	-13.514399
HF Energy	-13.264163
Nuclear repulsion energy	19.174777

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A_g	3220	2968	0.00
2	A_g	1734	1599	0.00
3	A_g	1384	1276	0.00
4	A_u	1037	955	0.00
5	B_1u	3194	2944	28.98
6	B_1u	1487	1370	6.77
7	B_2g	832	767	0.00
8	B_2u	3310	3051	61.68
9	B_2u	809	745	0.73
10	B_3g	3266	3011	0.00
11	B_3g	1212	1117	0.00
12	B_3u	953	879	137.46

Atom	y (Å)	z (Å)
C1	0.000	0.685
C2	0.000	-0.685
H3	0.936	1.254
H4	-0.936	1.254
H5	-0.936	-1.254
H6	0.936	-1.254

	C1	C2	H3	H4	H5	H6
C1		1.3692	1.0951	1.0951	2.1524	2.1524
C2	1.3692		2.1524	2.1524	1.0951	1.0951
H3	1.0951	2.1524		1.8712	3.1288	2.5076
H4	1.0951	2.1524	1.8712		2.5076	3.1288
H5	2.1524	1.0951	3.1288	2.5076		1.8712
H6	2.1524	1.0951	2.5076	3.1288	1.8712

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.315	C1	C2	H6	121.315
C2	C1	H3	121.315	C2	C1	H4	121.315
H3	C1	H4	117.369	H5	C2	H6	117.369

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CISD/CEP-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: CISD/CEP-31G*

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)