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	hartrees
Energy at 0K	-13.539618
Energy at 298.15K	-13.542659
HF Energy	-13.262865
Nuclear repulsion energy	19.036247

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A_g	3145	2966
2	A_g	1667	1572
3	A_g	1341	1265
4	A_u	991	935
5	B_1u	3123	2946
6	B_1u	1454	1371
7	B_2g	738	696
8	B_2u	3239	3055
9	B_2u	786	741
10	B_3g	3196	3014
11	B_3g	1181	1114
12	B_3u	899	848

Atom	y (Å)	z (Å)
C1	0.000	0.691
C2	0.000	-0.691
H3	0.941	1.263
H4	-0.941	1.263
H5	-0.941	-1.263
H6	0.941	-1.263

	C1	C2	H3	H4	H5	H6
C1		1.3818	1.1012	1.1012	2.1684	2.1684
C2	1.3818		2.1684	2.1684	1.1012	1.1012
H3	1.1012	2.1684		1.8825	3.1496	2.5251
H4	1.1012	2.1684	1.8825		2.5251	3.1496
H5	2.1684	1.1012	3.1496	2.5251		1.8825
H6	2.1684	1.1012	2.5251	3.1496	1.8825

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	H5	121.272	C1	C2	H6	121.272
C2	C1	H3	121.272	C2	C1	H4	121.272
H3	C1	H4	117.456	H5	C2	H6	117.456

All results from a given calculation for C₂H₄ (Ethylene)

using model chemistry: CCSD(T)/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: CCSD(T)/CEP-31G*

States and conformations

All results from a given calculation for C₂H₄ (Ethylene)