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	hartrees
Energy at 0K	-78.461737
Energy at 298.15K	-78.464899
HF Energy	-78.069003
Nuclear repulsion energy	33.374726

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3157	3062
2	A_g	1671	1620
3	A_g	1367	1326
4	A_u	1049	1017
5	B_1u	3142	3047
6	B_1u	1475	1430
7	B_2g	948	919
8	B_2u	3249	3151
9	B_2u	821	796
10	B_3g	3223	3126
11	B_3g	1243	1205
12	B_3u	966	937

Atom	y (Å)	z (Å)
C1	0.000	0.667
C2	0.000	-0.667
H3	0.923	1.232
H4	-0.923	1.232
H5	-0.923	-1.232
H6	0.923	-1.232

	C1	C2	H3	H4	H5	H6
C1		1.3343	1.0823	1.0823	2.1114	2.1114
C2	1.3343		2.1114	2.1114	1.0823	1.0823
H3	1.0823	2.1114		1.8469	3.0788	2.4633
H4	1.0823	2.1114	1.8469		2.4633	3.0788
H5	2.1114	1.0823	3.0788	2.4633		1.8469
H6	2.1114	1.0823	2.4633	3.0788	1.8469

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.439	C1	C2	H6	121.439
C2	C1	H3	121.439	C2	C1	H4	121.439
H3	C1	H4	117.122	H5	C2	H6	117.122

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CCSD(T)/cc-pVQZ

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)/cc-pVQZ

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)