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	hartrees
Energy at 0K	-78.397957
Energy at 298.15K	-78.401119
HF Energy	-78.042312
Nuclear repulsion energy	33.278368

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3191	3191
2	A_g	1675	1675
3	A_g	1379	1379
4	A_u	1058	1058
5	B_1u	3174	3174
6	B_1u	1480	1480
7	B_2g	944	944
8	B_2u	3281	3281
9	B_2u	822	822
10	B_3g	3256	3256
11	B_3g	1245	1245
12	B_3u	974	974

Atom	y (Å)	z (Å)
C1	0.000	0.669
C2	0.000	-0.669
H3	0.923	1.239
H4	-0.923	1.239
H5	-0.923	-1.239
H6	0.923	-1.239

	C1	C2	H3	H4	H5	H6
C1		1.3379	1.0849	1.0849	2.1197	2.1197
C2	1.3379		2.1197	2.1197	1.0849	1.0849
H3	1.0849	2.1197		1.8458	3.0904	2.4786
H4	1.0849	2.1197	1.8458		2.4786	3.0904
H5	2.1197	1.0849	3.0904	2.4786		1.8458
H6	2.1197	1.0849	2.4786	3.0904	1.8458

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.715	C1	C2	H6	121.715
C2	C1	H3	121.715	C2	C1	H4	121.715
H3	C1	H4	116.569	H5	C2	H6	116.569

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CCSD(T)/6-31G(2df,p)

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: CCSD(T)/6-31G(2df,p)

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)